Best 9 Mocha Bubble Cake Recipes

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Indulge in a delightful culinary journey with our Mocha Bubble Cake, a symphony of flavors and textures that will tantalize your taste buds. This exquisite cake showcases a moist chocolate sponge infused with rich coffee notes, complemented by a luscious chocolate ganache that adds a layer of decadent indulgence. The highlight of this creation lies in the innovative bubble mousse, a delightful combination of white chocolate and whipped cream that bursts with airy lightness and a hint of sweetness. This extraordinary dessert is further adorned with chocolate-covered coffee beans, adding a touch of sophistication and a delightful crunch. Prepare to embark on a sensory adventure as you savor each bite of this mocha masterpiece.

Check out the recipes below so you can choose the best recipe for yourself!

MOCHA CAKE



Mocha Cake image

Without a doubt, this is the best chocolate cake I've ever made. I share this decadent dessert with everyone I can!-Katherine DeLoach, Visalia, California

Provided by Taste of Home

Categories     Desserts

Time 1h10m

Yield 16 servings.

Number Of Ingredients 17

1 cup butter, softened
3 cups packed brown sugar
4 large eggs, room temperature
3 teaspoons vanilla extract
3 cups all-purpose flour
3/4 cup baking cocoa
3 teaspoons baking soda
1/2 teaspoon salt
1-1/2 cups brewed coffee, cooled
1-1/3 cups sour cream
FROSTING:
12 ounces cream cheese, softened
6 tablespoons butter, softened
6 ounces unsweetened chocolate, melted
6 tablespoons brewed coffee
2 teaspoons vanilla extract
4-1/2 to 5-1/2 cups confectioners' sugar

Steps:

  • Preheat oven to 350°. In a large bowl, cream butter and brown sugar until light and fluffy, 5-7 minutes. Add eggs, one at a time, beating well after each addition. Beat in vanilla. Combine flour, cocoa, baking soda and salt; add to creamed mixture alternately with coffee and sour cream, beating well after each addition. , Pour into three greased and floured 9-in. round baking pans. Bake until a toothpick inserted in the center comes out clean, 30-35 minutes. Cool 10 minutes before removing from pans to wire racks to cool completely., In a large bowl, beat cream cheese and butter until fluffy. Beat in the chocolate, coffee and vanilla until blended. Gradually beat in confectioners' sugar. Spread between layers and over top and sides of cake. Cover and refrigerate until serving.

Nutrition Facts : Calories 710 calories, Fat 34g fat (21g saturated fat), Cholesterol 131mg cholesterol, Sodium 528mg sodium, Carbohydrate 99g carbohydrate (73g sugars, Fiber 3g fiber), Protein 9g protein.

MOCHA CAKE



Mocha Cake image

Super moist chocolate coffee mocha cake recipe, topped with mocha cream cheese frosting. Recipe includes layer, Bundt, and mini cake options.

Provided by Erin Clarke / Well Plated

Categories     Dessert

Time 1h10m

Number Of Ingredients 23

Butter (for greasing the pan)
1/2 cup all-purpose flour
1/4 cup whole wheat pastry flour (plus 2 tablespoons)
1 cup granulated sugar
1/4 cup unsweetened cocoa powder (plus 2 tablespoons, plus extra for the pan)
2 teaspoons espresso powder
1 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon kosher salt
1/2 cup low fat buttermilk
1/4 cup coconut oil (melted and cooloed)
1 large egg (at room temperature)
1 teaspoon pure vanilla extract
1/2 cup freshly brewed hot coffee
4 ounces reduced fat cream cheese (at room temperature)
3 tablespoons unsalted butter (at room temperature)
1 tablespoon brewed coffee (at room temperature or cold)
1 teaspoon espresso powder
1/2 teaspoon pure vanilla extract
1 1/2 cups powdered sugar
1/4 cup unsweetened cocoa powder
1/8 teaspoon salt
Chopped chocolate covered espresso beans (for decorating)

Steps:

  • Preheat the oven to 350 degrees F. Butter and lightly dust with cocoa powder a 6-cup bundt pan or an 8-inch x 2-inch round cake pan, tapping out the excess. If using a round cake pan, line the bottom with parchment paper, then butter and dust with cocoa again.
  • Into the bowl of a standing mixer fitted with the paddle attachment or a large mixing bowl, briskly whisk together the all-purpose flour, whole wheat pastry flour, sugar, cocoa powder, espresso powder, baking soda, baking powder, and salt until well combined and no lumps remain.
  • In a separate bowl, combine the buttermilk, oil, eggs, and vanilla until well blended. With the mixer running on low speed, slowly pour the wet ingredients into the dry. Then, keeping the mixer running on low, pour in the coffee and mix gently, just until combined. Scrape the bottom of the bowl with a rubber spatula to ensure all ingredients are blended.
  • Pour the batter into the prepared pan and bake for 35 to 40 minutes, until a toothpick inserted in the center of the cake comes out clean (either of the two pans will bake in this amount of time). Remove from the oven, place the pan on a wire rack, then let the cake cool in the pan for 30 minutes. Carefully invert onto a serving plate.
  • Prepare the frosting: in a large mixing bowl, beat together the cream cheese and butter on medium speed until light and fluffy.
  • In a small bowl, stir together the coffee, espresso powder, and vanilla extract so that the espresso powder dissolves, then add the mixture to the bowl with the cream cheese and butter and beat until combined. In a separate bowl, sift together the powdered sugar, cocoa powder, and salt. With the mixer on low, slowly add the powdered sugar mixture to the cream cheese. Mix until well blended. Add a little more liquid coffee or powdered sugar as needed to reach the desired consistency. Spread over the cooled cake. Sprinkle immediately with chopped chocolate covered espresso beans. Dive in!

Nutrition Facts : TransFat 1 g, ServingSize 1 slice (of 10), Calories 304 kcal, Carbohydrate 49 g, Protein 4 g, Fat 12 g, SaturatedFat 8 g, Cholesterol 32 mg, Fiber 2 g, Sugar 39 g, UnsaturatedFat 3 g

CHOCOLATE MOCHA CAKE I



Chocolate Mocha Cake I image

This is a one bowl cake. You can substitute sour milk for buttermilk - mix 1 cup milk with 1 tablespoon vinegar or lemon juice and let stand for 10 minutes. Frost with Coffee Icing.

Provided by Carol

Categories     Desserts     Cakes     Chocolate Cake Recipes

Yield 12

Number Of Ingredients 11

2 cups all-purpose flour
2 cups white sugar
⅔ cup unsweetened cocoa powder
½ cup vegetable oil
2 eggs
1 cup buttermilk
2 teaspoons baking soda
½ teaspoon salt
1 teaspoon baking powder
1 tablespoon instant coffee powder
1 cup hot water

Steps:

  • Preheat oven to 350 degrees F (175 degrees C). Grease two 9 inch round cake pans.
  • Measure flour, sugar, cocoa, oil, eggs, buttermilk, baking powder, soda, and salt into a mixing bowl. Dissolve instant coffee in hot water, and add to mixing bowl. Beat at medium speed for 2 minutes until smooth; batter will be thin. Pour into prepared pans.
  • Bake for 30 to 35 minutes, or until an inserted wooden pick comes out clean. Cool in pans for 10 minutes, and then turn out onto racks to cool completely.
  • Frost cooled cake with Coffee Icing. After frosting, melt some semisweet chocolate baking squares or chips in a double boiler. Drizzle chocolate around top outside edges letting it run down sides, or over top of cake.

Nutrition Facts : Calories 317.6 calories, Carbohydrate 53.1 g, Cholesterol 31.8 mg, Fat 11 g, Fiber 2.1 g, Protein 4.8 g, SaturatedFat 2 g, Sodium 381.9 mg, Sugar 34.5 g

MOCHA BUTTERCREAM AND MOCHA PASTRY CREAM



Mocha Buttercream and Mocha Pastry Cream image

A filling of custardy pastry cream is layered within the Mocha Bubble Cake. Ultra-smooth buttercream adds a rich finishing touch.

Provided by Martha Stewart

Categories     Food & Cooking

Time 3h5m

Yield Makes 4 cups each (enough for one 8-inch layer cake)

Number Of Ingredients 16

2 tablespoons instant espresso powder
2 tablespoons hot water
4 large egg whites, room temperature
1 1/4 cups sugar
3 sticks unsalted butter, room temperature, cut into small pieces
5 ounces semisweet chocolate, coarsely chopped, melted and cooled
2 1/2 teaspoons instant espresso powder
2 1/2 teaspoons hot water
2 large eggs, plus 2 large egg yolks
1/2 cup sugar
1/2 cup whole milk
1/2 vanilla bean, split and scraped, pod reserved for another use
1/4 cup plus 1 1/2 teaspoons cornstarch
Salt
1 1/2 tablespoons unsalted butter, cut into small pieces
1 1/2 ounces bittersweet chocolate, coarsely chopped

Steps:

  • Make the mocha buttercream: Combine espresso powder and hot water in a small bowl; stir until espresso dissolves. Heat egg whites and sugar in a heatproof bowl of a mixer set over a pan of simmering water, whisking until whites are warm to the touch and sugar dissolves, 2 to 3 minutes. (Mixture should feel smooth when rubbed between 2 fingers.) Whisk egg-white mixture with a mixer on medium-high speed until stiff, glossy peaks form and mixture cools completely, about 10 minutes.
  • Reduce speed to medium-low. Add butter, a few tablespoons at a time, whisking well after each addition. Switch to the paddle attachment, and reduce speed to low. Beat in espresso mixture and melted chocolate until smooth, then beat to reduce air bubbles, 3 to 5 minutes. Cover with plastic wrap, and let stand at room temperature until ready to use.
  • Make the mocha pastry cream: Prepare an ice-water bath. Combine espresso powder and hot water in a small bowl; stir until espresso dissolves. Whisk eggs, egg yolks, and 1/4 cup sugar in medium bowl.
  • Bring remaining 1/4 cup sugar, the milk, vanilla seeds, cornstarch, and 1/4 teaspoon salt to a boil in a medium saucepan over medium-high heat, whisking constantly. Remove from heat, and gradually whisk one-third of hot-milk mixture into egg mixture. Whisk entire mixture back into saucepan. Raise heat to medium-high, and bring to a boil, whisking constantly. Cook, continuing to whisk, until mixture is thick enough to hold its shape when lifted with a spoon, about 3 minutes.
  • Remove from heat. Whisk in butter, 1 piece at a time. Whisk in espresso mixture and chopped chocolate until smooth. Strain mixture through a fine sieve into a bowl. Cover with parchment or plastic wrap, pressing it directly on surface to prevent a skin from forming. Transfer to ice-water bath; let stand until cooled, about 30 minutes. Refrigerate until chilled and firm, at least 2 hours.

MOIST MOCHA CAKE



Moist Mocha Cake image

Provided by Ellie Krieger

Categories     dessert

Time 50m

Yield 16 servings (1 serving equals 1 square)

Number Of Ingredients 21

Cooking spray
3/4 cup whole-wheat pastry flour
1/2 cup all-purpose flour
1/2 cup Dutch processed cocoa
1/4 teaspoon salt
1 teaspoon baking soda
1 teaspoon baking powder
2 tablespoons butter, melted
2 tablespoons canola oil
2 eggs
2 egg whites
1 1/2 cups lowfat yogurt
2 teaspoons vanilla extract
3/4 cup granulated sugar
1 tablespoon espresso powder, dissolved in 1 tablespoon of hot water
2 ounces good-quality dark chocolate
1 (8-ounce) bar Neufchatel cheese (reduced fat cream cheese), softened
1/3 cup confectioners' sugar
1 teaspoon espresso powder dissolved in 1 teaspoon hot water
1 teaspoon coffee liqueur or vanilla
1 small square chocolate

Steps:

  • Arrange rack in center of oven and preheat oven to 350 degrees F. Spray a 9 by 13-inch cake pan with cooking spray and set aside.
  • Whisk together flours, cocoa, salt, baking soda and baking powder in a medium bowl, then sift ingredients through a fine mesh strainer.
  • In a large mixing bowl, whisk together melted butter and oil. Add eggs and egg whites and whisk to incorporate. Fold in yogurt, vanilla, sugar and dissolved espresso powder. Melt the chocolate in the microwave for 90 seconds or over a double boiler. Fold chocolate into batter.
  • Gradually add sifted dry ingredients and stir until just incorporated; do not overbeat. Pour batter into prepared pan. Bake for 25 to 30 minutes, until cake has risen nicely and a toothpick inserted into the center comes out clean. Cool completely.
  • While cake is cooling, make the frosting:
  • Combine all ingredients in a bowl and beat with an electric hand mixer until soft and creamy. Spread frosting evenly over cake and cut into squares. Finely grate one small square of chocolate. Sprinkle the chocolate shavings over the cake.

MOCHA BLACKOUT CAKE



Mocha Blackout Cake image

Provided by Aida Mollenkamp

Categories     dessert

Time 2h50m

Yield 8 to 10 servings

Number Of Ingredients 26

Butter, for pans
1 1/2 cups unsweetened cocoa powder, plus more for dusting pans
2 1/2 cups all-purpose flour
2 tablespoons instant espresso powder
2 teaspoons baking soda
1 1/2 teaspoons baking powder
2 cups granulated sugar
2/3 cup vegetable oil
3 large eggs
2 teaspoons pure vanilla extract
1 1/2 teaspoons table salt
1 cup whole milk
1 cup strong brewed coffee
1 cup granulated sugar
3 tablespoons cornstarch
2 tablespoons unsweetened cocoa powder
2 tablespoons instant espresso powder
1/2 teaspoon table salt
2 1/2 cups whole milk
1 tablespoon vanilla extract
3 large egg yolks
4 ounces semisweet chocolate, finely chopped
2 tablespoons unsalted butter, cut into pieces
1 box chocolate wafers, crushed to crumbs (about 2 cups) (recommended: Nabisco Famous Chocolate Wafers)
1 cup whipping cream
1 to 2 tablespoons dark rum

Steps:

  • For the Cake: Heat the oven to 350 degrees F and arrange a rack in the middle. Coat 2 (9-inch) round cake pans with butter and dust with cocoa powder.
  • In a large mixing bowl, whisk together cocoa, flour, espresso powder, baking soda, and baking powder until well combined; set aside. Combine the sugar, oil, eggs, vanilla, and salt in a separate large bowl, and whisk until combined and smooth. Combine the milk and coffee in a small bowl. Add 1/3 of the milk mixture into the sugar/egg mixture and whisk until just incorporated. Add 1/3 of the flour mixture, and whisk until smooth. Continue with the remaining milk and flour mixture, alternating between each and whisking until all the ingredients are just incorporated and smooth.
  • Divide the batter evenly between prepared pans. Put the pans on a baking sheet. Bake, rotating the baking sheet 180 degrees halfway through, until a tester inserted in the center comes out clean, about 25 to 30 minutes.
  • Remove the cakes from the oven and let them rest, in the pans, on a cooling rack for 10 to 15 minutes. Remove the cakes from the pans, and cool completely before proceeding.
  • For the Pudding: Combine the sugar, cornstarch, cocoa powder, espresso powder and salt in a medium saucepan and whisk to evenly combine. Whisk in the milk and vanilla until completely incorporated and the mixture is smooth. Whisk in the egg yolks until combined.
  • Cook over medium-low heat, stirring constantly, until mixture thickens and bubbles, about 7 minutes. Reduce the heat to low and cook, stirring constantly, until completely thickened, about 1 minute more.
  • Remove from the heat and immediately add the chocolate and the butter, and stir until melted and evenly combined. Put plastic wrap directly on surface of the pudding and chill at least 1 1/2 hours.
  • To assemble: Arrange 1 of the cakes on a flat cake plate and top with 1/3 of the pudding, spreading evenly and almost to the edges. Top with second cake then use the remaining pudding to frost the top and sides of the cake.
  • Press the cookie crumbs into the sides and top of the cake. Pick up any fallen crumbs and apply them, pressing gently to cover the cake completely. Cover loosely with plastic wrap and refrigerate at least 30 minutes before serving.
  • For the Whipped Cream: In a medium bowl, add the cream and whisk until soft peaks form. Add the rum and continue to whisk until stiff and the cream sticks to the whisk. Serve the whipped cream on the side.

LIGHT & FLUFFY CHOCOLATE MOCHA CAKE



Light & fluffy chocolate mocha cake image

Have your cake and eat it, with this beautifully decadent low-fat chocolate cake

Provided by Mary Cadogan

Categories     Afternoon tea, Treat

Time 50m

Number Of Ingredients 13

softened butter , for greasing
3 large eggs
85g caster sugar
70g plain flour
1 tbsp cornflour
2 tbsp cocoa
½ tsp baking powder
25g dark chocolate , chopped (don't use 75% chocolate, or the icing will be bitter)
1 tbsp strong black coffee
100g light soft cheese
100g 0% Greek yogurt
2 tbsp icing sugar
15g dark chocolate , chopped

Steps:

  • Heat oven to 180C/160C fan/gas 4. Lightly butter and line the bases of 2 x 18cm sandwich tins with baking paper. Whisk the eggs and sugar until light and fluffy, about 5 mins with a tabletop mixer or 10 mins using an electric hand whisk. The mixture will have increased greatly in volume and be thick enough to leave a trail on the surface when the whisk blades are lifted.
  • Sift the flour, cornflour, cocoa and baking powder over the surface and fold in gently using a large metal spoon. Divide between the tins, gently spreading the mixture to the edges, then bake for 15-20 mins until the cakes are well risen, have begun to shrink away from the sides of the tins and spring back when gently pressed. Leave to cool in the tins for 5 mins, then turn out onto a rack.
  • To decorate, microwave the chocolate and coffee together on Medium for 20-30 secs until the chocolate has melted. Gently stir until smooth, then cool slightly. Beat the soft cheese with the yogurt and icing sugar until smooth, then spoon half the mixture into a small bowl stir in the melted chocolate and set aside. Place one cake on a serving plate and spread with the yogurt mixture. Cover with the other cake, then spread the chocolate yogurt mixture over the top.
  • To finish, microwave the 15g chocolate on Medium for about 20 secs until melted. Stir gently until smooth, then drizzle all over the cake.

Nutrition Facts : Calories 180 calories, Fat 7 grams fat, SaturatedFat 3 grams saturated fat, Carbohydrate 27 grams carbohydrates, Sugar 18 grams sugar, Fiber 1 grams fiber, Protein 5 grams protein, Sodium 0.33 milligram of sodium

MOCHA MOUSSE CAKE



Mocha Mousse Cake image

Love mocha? This ultra-chocolaty layer cake is a mocha lover's dream!

Provided by By Betty Crocker Kitchens

Categories     Dessert

Time 4h

Yield 12

Number Of Ingredients 14

1 box Betty Crocker™ Super Moist™ chocolate fudge cake mix
1 1/4 cups water
1/3 cup vegetable oil
2 tablespoons coffee-flavored liqueur or cold brewed coffee
4 eggs
3/4 cup whipping cream
2 tablespoons granulated sugar
1/3 cup coffee-flavored liqueur or cold brewed coffee
1 cup semisweet chocolate chips (6 oz)
2 teaspoons vanilla
1 cup whipping cream
3/4 cup powdered sugar
1/4 cup Dutch processed unsweetened baking cocoa
1/2 teaspoon vanilla

Steps:

  • Heat oven to 350°F (325°F for dark or nonstick pans). Grease and lightly flour bottoms and sides of two 8- or 9-inch round cake pans. In large bowl, beat cake mix, water, oil, 2 tablespoons liqueur and the eggs with electric mixer on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Pour into pans.
  • Bake 8-inch pans 34 to 40 minutes, 9-inch pans 31 to 37 minutes or until toothpick inserted in center comes out clean. Cool 10 minutes. Run knife around sides of pans to loosen cakes; remove from pans to cooling rack. Cool completely, about 1 hour. Refrigerate layers 45 minutes for easier handling.
  • Meanwhile, to make mousse, in 2-quart saucepan, mix 1/4 cup of the whipping cream, the granulated sugar and 1/3 cup liqueur. Cook over medium heat, stirring constantly, until sugar is dissolved and mixture simmers; remove from heat. Stir in chocolate chips with whisk until chips are melted. Stir in 2 teaspoons vanilla. Pour into large bowl; cool to room temperature, about 10 minutes.
  • In chilled medium bowl, beat remaining 1/2 cup whipping cream on high speed just until soft peaks form. Fold whipped cream into chocolate mixture. Cover and refrigerate 30 minutes.
  • In another chilled medium bowl, beat topping ingredients on high speed until soft peaks form.
  • Trim off rounded top of one cake layer. Cut each cake layer horizontally to make 2 layers. (To cut, mark side of cake with toothpicks and cut with long, thin knife.) Place 1 layer, cut side up, on serving plate; spread with one-third of the mousse. Repeat with second and third layers. Top with fourth layer, cut side down. Spread topping over side and top of cake. Cover; refrigerate at least 1 hour before serving. Store covered in refrigerator.

Nutrition Facts : Calories 470, Carbohydrate 51 g, Cholesterol 120 mg, Fat 5, Fiber 2 g, Protein 5 g, SaturatedFat 13 g, ServingSize 1 Serving, Sodium 350 mg, Sugar 34 g, TransFat 0 g

FLUFFY COFFEE AND WALNUT CAKE WITH MOCHA BUTTERCREAM



Fluffy Coffee and Walnut Cake With Mocha Buttercream image

This light and fluffy coffee and walnut cake recipe is inspired by the classic British cake-but the mocha frosting takes it over the top.

Provided by Tara O'Brady

Time 2h

Yield Makes one 8"-diameter cake

Number Of Ingredients 20

¾ cup (1½ sticks) unsalted butter, plus more for pans
2 cups (250 g) raw walnuts
½ cup plus 2 Tbsp. vegetable oil or refined coconut oil, melted
2 cups (250 g) all-purpose flour
2¼ tsp. baking powder
1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt
½ tsp. baking soda
4 large eggs
1¼ cups (250 g) sugar
2 tsp. vanilla extract
1 tsp. instant espresso powder
2 Tbsp. whole milk
8 large egg whites
2¼ cups (450 g) sugar
¾ tsp. Diamond Crystal or ½ tsp. Morton kosher salt
¼ tsp. cream of tartar
1 tsp. vanilla extract
3 cups (6 sticks) unsalted butter, room temperature, cut into pieces
¼ cup (21 g) unsweetened cocoa powder, sifted if needed
2 tsp. instant espresso powder

Steps:

  • Place a rack in middle of oven; preheat to 325°. Lightly butter three 8"-diameter cake pans and line bottoms with parchment paper rounds. Toast 2 cups (250 g) raw walnuts in a single layer on a rimmed baking sheet, tossing halfway through, until golden brown, 12-14 minutes. Let cool. Set aside 1 cup walnuts for serving.
  • Meanwhile, cook ¾ cup (1½ sticks) unsalted butter in a small saucepan over medium heat, stirring often, until it foams, then browns, 6-8 minutes. Remove from heat and immediately stir in ½ cup plus 2 Tbsp. vegetable oil or refined coconut oil, melted. Set brown butter mixture aside.
  • Pulse remaining 1 cup toasted walnuts in a food processor until coarsely ground (it should be the texture of panko). Transfer to a large bowl and whisk in 2 cups (250 g) all-purpose flour, 2¼ tsp. baking powder, 1 tsp. Diamond Crystal or ½ tsp. Morton kosher salt, and ½ tsp. baking soda.
  • Process 4 large eggs, 1¼ cups (250 g) sugar, 2 tsp. vanilla extract, and 1 tsp. instant espresso powder in food processor (no need to clean bowl) until mixture is lightened in color and thickened, about 30 seconds. Stir 2 Tbsp. whole milk into reserved brown butter mixture. With motor running, gradually stream brown butter mixture into egg mixture and process until combined. Add dry ingredients and process just until a smooth batter forms. Divide batter among prepared pans.
  • Bake cakes, rotating pans front to back after 15 minutes, until puffed and just starting to pull away from the sides of pans and a tester inserted in the centers comes out clean, 20-22 minutes. Transfer pans to wire racks and let cakes cool 15 minutes. Run a small knife around edges of each cake to release from pan if needed. Turn out cakes onto racks and remove parchment paper; discard. Turn cakes right side up and let cool completely.
  • Combine 8 large egg whites, 2¼ cups (450 g) sugar, ¾ tsp. Diamond Crystal or ½ tsp. Morton kosher salt, and ¼ tsp. cream of tartar in the bowl of a stand mixer. Set over a medium saucepan filled with 1½" of simmering water (bowl should not touch water). Heat, stirring and scraping often with a heatproof rubber spatula, until sugar is dissolved and an instant-read thermometer registers 185°, 10-15 minutes.
  • Fit bowl onto stand mixer fitted with whisk attachment and beat, starting on low speed and gradually increasing to high, until meringue is shiny and stiff, 8-10 minutes. Beat in 1 tsp. vanilla extract.
  • With mixer on medium speed, add 3 cups (6 sticks) unsalted butter, room temperature, cut into pieces, a piece at a time, mixing until incorporated before adding more. Once all the butter has been added, increase speed to high and beat 1 minute. Transfer buttercream in bowl to refrigerator and chill 30 minutes.
  • Fit bowl with buttercream back onto stand mixer and add ¼ cup (21 g) unsweetened cocoa powder, sifted if needed, and 2 tsp. instant espresso powder. Beat on medium-low speed, scraping down sides as needed, until combined.
  • Using a large serrated knife and long sawing strokes, remove tops of cakes to level if needed. Place a cake layer, right side up, on a cake stand or large plate. Using an offset spatula, spread ¼ cup buttercream over cake, working all the way to the edges. Place second cake layer, right side up, on top; spread another ¼ cup buttercream over cake, working all the way to the edges. Place third cake layer, cut side down, on top, and press lightly to adhere. Spread top and sides of cake with ½ cup buttercream in a thin, even layer. Chill, uncovered, at least 1 hour and up to 12 hours. (If chilling cake longer than 1 hour, cover remaining buttercream in bowl and chill. Bring to room temperature and beat again before using.)

Tips:

  • Use high-quality chocolate: This will make a big difference in the overall flavor of the cake. Look for chocolate that is at least 70% cacao.
  • Don't overmix the batter: Overmixing can make the cake tough. Mix the batter just until the ingredients are combined.
  • Bake the cake until a toothpick inserted into the center comes out clean: This will ensure that the cake is cooked through.
  • Let the cake cool completely before frosting it: This will help to prevent the frosting from melting.
  • Use a stiff frosting: This will help to hold the bubbles in place.
  • Be patient: Making bubble cake takes time. But it's worth it!

Conclusion:

Mocha bubble cake is a delicious and unique cake that is perfect for any occasion. It's a bit of a labor of love, but it's definitely worth the effort. Follow these tips to make sure your bubble cake turns out perfect.

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