Best 2 Top Secret Chocolate Cake Recipes

KILLER CHOCOLATE CAKE

Steps:

• Make the cake: Preheat the oven to 350°F. Grease a 9-by-13-inch glass or metal cake pan with the 1 tablespoon of room temperature butter.
• Whisk together the flour, cocoa, baking powder, baking soda, and salt in a large bowl. Combine the buttermilk and vanilla in a medium bowl or a 2-cup liquid measuring cup.
• In the bowl of a stand mixer fitted with the paddle attachment (or in a large bowl, if using a handheld mixer), cream the 1 cup of butter and the brown sugar on low speed until creamy and well combined. Increase the speed to medium-high and beat until light and airy, about 2 minutes. Reduce the mixer speed to medium-low and add the eggs one at a time, mixing well between each addition and scraping down the side and bottom of the bowl as needed. Once all 3 eggs are added, beat for 1 minute on medium speed to get the mixture nice and fluffy.
• Reduce the speed to medium-low and add the flour mixture alternately with the buttermilk mixture in three batches, starting with the flour. Add the melted chocolate and mix on medium speed until well incorporated, stopping the mixer to scrape down the side and bottom of the bowl as needed.
• Use a rubber or offset spatula to scrape the batter into the prepared pan and even it out as much as possible. Bake until a cake tester inserted into the center of the cake comes out clean and the center of the cake resists light pressure, about 40 minutes. Remove from the oven and set aside to cool completely, at least 2 hours, before frosting.
• Make the frosting: Put the butter in the bowl of a stand mixer fitted with the whisk attachment (or in a medium bowl, if using a handheld mixer). Beat on medium-high speed until smooth. Turn off the mixer and sift the confectioners' sugar into the bowl and combine on low speed. Add the melted chocolate, soy sauce, and vanilla and beat on low speed until combined. Increase the mixer speed to medium-low and whip until glossy, 15 to 30 seconds.
• Use an offset spatula or butter knife to spread the frosting on top of the cooled cake. Cut into squares and serve.
• DO AHEAD: The cake will keep, loosely covered with plastic wrap in the refrigerator, for up to 3 days. Let it sit out at room temperature for 15 to 20 minutes before slicing and serving.

WORLD'S BEST CHOCOLATE CAKE

Steps:

• Heat oven to 350 degrees Fahrenheit/170 degrees Celsius. Grease a 9-inch/23-centimeter round springform pan with butter and line with parchment paper, then set aside.
• Make the cake: Place butter, chocolate and hot coffee in a large heatproof bowl and mix well until everything is melted, combined and smooth. Whisk in sugar by hand until dissolved. Add eggs and vanilla extract and whisk again until thoroughly combined and smooth. Sift flour, cocoa powder and salt together into a bowl and then whisk this into the melted chocolate mixture. The batter here is liquid, but don't think you have missed something; this is how it should be.
• Pour batter into the prepared pan and bake for 1 hour, or until the cake is cooked and a skewer inserted into the center comes out clean or with just a few dry crumbs attached. The top will form a crust and crack a little, but don't worry, this is expected. Leave the cake to cool for 20 minutes before removing from the pan, then set aside until completely cool.
• Make the chocolate ganache, if desired: Place chocolate pieces in a food processor, process until fine and set aside. Combine cream and corn syrup in a small pan and place over medium-high heat. As soon as bubbles begin to appear (just before it comes to a boil), remove from the heat. Get the food processor running again, with the chocolate still inside, and pour in the hot cream in a steady stream. Process for 10 seconds, then add butter. Continue to process until mixture is shiny and smooth. (You can also make the ganache by hand; just make sure the chocolate is chopped fairly finely before adding the cream mixture. Stir with a wooden spoon until almost melted, then add the butter. Stir again until the ganache is smooth.)
• Use a rubber spatula to scrape the ganache into a bowl and cover with plastic wrap, with the plastic actually touching the top of the ganache. Set aside until it has set to the consistency you want. If you want a thin layer to spread over the cake, it can be poured over while liquid so that you get an even, light and shiny coating. For a thicker ganache with a spreading consistency, leave it for about 2 hours at room temperature. (The ganache can be stored at room temperature, providing it's not too warm, for 3 days or kept in the fridge for up to 2 weeks. It can also be frozen, although it will lose a bit of its shine when defrosted.)
• Make the espresso cinnamon mascarpone cream, if desired: Place all the ingredients in the bowl of an electric mixer fitted with the whisk attachment. Beat for 1 to 2 minutes, until soft peaks form.
• Peel the parchment from the cake and discard. Transfer to a serving platter and spread the ganache, if using, on top of the cake. Slice into wedges, divide the cake among plates and, if using, spoon the mascarpone cream alongside. With or without icing, the cake will keep well for 4 to 5 days in an airtight container.