Best 10 Onions Au Gratin With Parmesan And Sherry Recipes

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Indulge in the delectable flavors of Onions au Gratin, a classic French dish reimagined with a modern twist. This savory side dish showcases the perfect harmony of caramelized onions, creamy sauce, and melted cheese, topped with a crispy Parmesan crust. Savor the sweetness of the onions, perfectly balanced by the nutty flavor of Gruyère and Parmesan cheeses. Experience the richness of the sherry-infused cream sauce, adding a touch of elegance to this comforting dish. Whether you're hosting a dinner party or seeking a cozy meal for a chilly evening, Onions au Gratin is sure to impress. This recipe also includes variations for a vegetarian version and a simplified method using pre-sliced onions, catering to different dietary preferences and cooking styles.

Here are our top 10 tried and tested recipes!

ONIONS AU GRATIN WITH PARMESAN AND SHERRY



Onions au Gratin with Parmesan and sherry image

Make sure you use sweet onions for this recipe, such as Vidalia, Walla Walla or Maui source unknown

Provided by Lynnda Cloutier

Categories     Other Appetizers

Number Of Ingredients 9

2 tbsp. unsalted butter
8 cups sliced sweet onions
1/2 cup dry sherry or low sodium chicken broth
2 sprigs fresh thyme
2 dried bay leaves
1/2 cup shredded parmesan reggiano, 4 oz
1/2 cup shredded gruyere cheese
1/4 cup pitted kalamata olives, halved
toasted baguette slices

Steps:

  • 1. Preheat oven to 400. Melt butter in large cast iron or other ovenproof skillet over medium heat. Add onions, stirring til slightly softened; cover and cook til completely softened, 10 minutes
  • 2. Add sherry, thyme and bay leaves; increase heat to medium high. Saute, uncovered, til liquid evaporates and onions are browning, stirring occasionally, 10 to 15 minutes.
  • 3. Mix the Parmigiano Reggiano and Gruyere, then stir 1/2 cup of the cheese mixture into onion mixture. Top with remaining 1/2 cup cheese and bake til cheese is bubbly and browned, about 20 minutes. Remove and discard thyme sprigs and bay leaves. Sprinkle olives over onions and let cool slightly. Serve Onions au Gratin with baguette slices.

CREAMED ONION GRATIN



Creamed Onion Gratin image

This Creamed Onion Gratin is one of those timeless recipes that will always have a place at the Southern holiday table. If you've planned ahead, you already stored your surplus of spring Vidalia's to enjoy throughout the year. If not, any sweet onion will do. First, the onions are slowly caramelized to bring out (even more of) their ultra sweet flavor, and laced with sherry to add another dimension of taste. The tender onions are then tossed in a rich and creamy cheese sauce and topped with buttery panko crumbs. The results are baked into a bubbling golden brown casserole so good you'll want to eat it straight from the pan with a spoon.

Provided by Food Network

Time 1h30m

Yield s: 6 - 8 servings

Number Of Ingredients 8

3 pounds sweet onions (such as Vidalia, Walla Walla, or Maui onions)
3 tablespoons cream sherry
6 tablespoons unsalted butter, divided
1/4 cup all-purpose flour
1 cup whole milk, scalded
1 cup freshly grated Parmesan cheese
Kosher salt and pepper
1/2 cup panko crumbs

Steps:

  • Preheat the oven to 375 degrees. Lightly grease a gratin dish or medium casserole.
  • Cut off the root and tip of the onions. Slice in half length-wise and peel. Lay the cut-side of the onion down and slice length-wise into thick wedges.
  • In a Dutch oven or heavy pot, melt two tablespoons of butter over medium heat. Add the onions and cook, stirring occasionally, until soft and caramelized, about 40 minutes. Add the sherry and simmer until it evaporates. Remove the onions from the pan and pour through a fine mesh sieve. Let them drain while making the bechamel sauce. (Draining the onions prevents a runny gratin because the onions will continue to release more liquid in the oven.)
  • In the same Dutch oven, melt 3 tablespoons of butter over medium heat. Stir in the flour and cook for one minute. Add the scalded milk and cook, whisking constantly, until the sauce is very thick. Remove from the heat. Fold in the Gruyere and stir until completely melted. Season with salt and pepper, to taste. Add the onions to the cheese sauce and toss to thoroughly coat. Pour the onion mixture into the gratin dish.
  • Melt the remaining tablespoon of butter and toss with the panko crumbs. Sprinkle over the top of the onions and bake until bubbly and golden brown, about 30 minutes. Serve warm.

ONIONS AU GRATIN WITH PARMESAN AND SHERRY



Onions Au Gratin with Parmesan and sherry image

Pick sweet onions for this dish, such as Walla Walla, Vidalia or Maui

Provided by Lynnda Cloutier

Categories     Vegetable Appetizers

Number Of Ingredients 9

2 tbsp. unsalted butter
8 cups sliced sweet onions
1/2 cu dry sherry or low sodium chicken broth
2 sprigs fresh thyme
2 dried bay leaves
1/2 cup shredded parmigiano reggiano, 4 oz
1/2 cup shredded gruyere cheese
1/4 cup pitted kalamata olives, halved
toasted baguette slices

Steps:

  • 1. Preheat oven to 400. Melt butter in large cast iron or other ovenproof skillet over medium heat. Add onions, stirring til slightly softened; cover and cook til completely softened, 10 minutes.
  • 2. Add sherry, thyme, and bay leaves; increase heat to medium high. Saute, uncovered, til liquid evaporates and onions are browning, stirring occasionally, 10 to 15 minutes.
  • 3. Mix Parmigiano Reggiano and Gruyere, then stir 1/2 cup of cheese mixture into onion mixture. top with remaining 1/2 cup cheese and bake til cheese is bubbly and browned, about 20 minutes.
  • 4. Remove and discard thyme sprigs and bay leaves. Sprinkle olives over onions and let cool slightly. serve onions au grating with baguette slices.

PARMESAN SHRIMP AU GRATIN WITH SHERRY



Parmesan Shrimp Au Gratin With Sherry image

Make and share this Parmesan Shrimp Au Gratin With Sherry recipe from Food.com.

Provided by -------

Categories     < 60 Mins

Time 35m

Yield 4-6 serving(s)

Number Of Ingredients 16

4 cups water
1 tablespoon salt
1 1/2 lbs shrimp
2 tablespoons butter
2 tablespoons flour
1/4 teaspoon salt
1 dash pepper
1 tablespoon parsley flakes
1 tablespoon louisiana hot sauce
1 1/2 cups milk
2 cups shredded cheddar cheese
1 tablespoon lemon juice
1 tablespoon Worcestershire sauce
2 tablespoons sherry wine
1/2 cup shredded cheese
1/4 cup grated parmesan cheese

Steps:

  • Heat water & salt to boiling.
  • Add shrimp & simmer 1 to 3 minutes or until shrimp turn pink.
  • Drain & rinse in cold water to stop cooking process, rinse & drain again.
  • Cheese sauce:.
  • Melt butter.
  • Stir in flour, salt, pepper, parsley, & hot sauce.
  • Add milk all at once.
  • Cook over medium heat, stirring until thickened & bubbly.
  • Add cheese & stir until melted.
  • Add lemon juice, Worcestershire sauce, & sherry; cook 1 minute.
  • Arange shrimp in 11x7x2-inch baking dish.
  • Pour sauce over shrimp.
  • Topping:.
  • Sprinkle cheddar cheese over sauce in dish & top with Parmesan cheese.
  • Broil until cheese melts.
  • Goes good with pasta, rice, or baked potato & salad.

Nutrition Facts : Calories 629.5, Fat 35, SaturatedFat 21.4, Cholesterol 433.2, Sodium 3081.6, Carbohydrate 11.8, Fiber 0.2, Sugar 1.2, Protein 58.4

PARMESAN-CRUSTED AU GRATIN POTATOES AND ONION



Parmesan-Crusted Au Gratin Potatoes and Onion image

Potatoes and onions mixed with a creamy cheese sauce and baked with a crispy cheese topping.

Provided by Tom Paull

Categories     Side Dish     Potato Side Dish Recipes     Potatoes Au Gratin Recipes

Time 1h15m

Yield 10

Number Of Ingredients 13

4 pounds russet potatoes, cut into 1/4-inch slices
salt and ground black pepper to taste
6 tablespoons butter
6 tablespoons all-purpose flour
1 ½ cups whole milk
1 cup heavy whipping cream
2 ½ cups shredded mild Cheddar cheese
1 cup shredded Asiago cheese
1 sweet onion, sliced into rings
¾ cup sliced green onions
⅓ cup shaved Parmesan cheese
7 buttery round crackers (such as Ritz®), crushed
2 tablespoons chopped fresh parsley

Steps:

  • Place potatoes into a large pot and cover with water; add salt and bring to a boil. Reduce heat to medium-low and simmer until just beginning to soften, 15 to 20 minutes; drain.
  • Melt butter in a saucepan over medium heat; add flour and whisk until the mixture thickens, 1 to 2 minutes. Pour milk and heavy cream into the saucepan; cook and stir until smooth, 2 to 3 minutes. Melt Cheddar and Asiago cheese into the butter mixture; cook while stirring continually until the mixture is smooth and creamy, 1 to 2 minutes. Season the sauce with salt and pepper.
  • Preheat oven to 400 degrees F (200 degrees C). Butter a 9x13-inch casserole dish.
  • Layer about half the sliced potatoes into the bottom of the baking dish. Top the potatoes with sweet onion slices and green onions; pour about 1/3 of the cheese sauce over the onions. Arrange the remaining potato slices into the dish; pour remaining cheese sauce over the potatoes. Sprinkle Parmesan cheese and crushed crackers over the top.
  • Bake in the preheated oven until hot in the center and beginning to brown at the edge, about 30 minutes. Sprinkle parsley over the top of the dish to serve.

Nutrition Facts : Calories 507.3 calories, Carbohydrate 41.5 g, Cholesterol 96.2 mg, Fat 31 g, Fiber 4.6 g, Protein 17.1 g, SaturatedFat 19.1 g, Sodium 455.8 mg, Sugar 4.2 g

ONIONS AU GRATIN



Onions Au Gratin image

Most everyone cooks with onions, but few think of serving them as a vegetable side dish. My family really loves this recipe.-Christine Halandras, Meeker, Colorado

Provided by Taste of Home

Categories     Side Dishes

Time 40m

Yield 8 servings.

Number Of Ingredients 9

6 medium yellow onions
1/4 cup butter, cubed
2 tablespoons all-purpose flour
1/2 cup beef broth
1/2 cup heavy whipping cream
1/4 teaspoon salt
1/8 teaspoon pepper
1/2 cup shredded Swiss cheese
1/2 cup grated Parmesan cheese

Steps:

  • Cut onions into 1/2-in. slices; saute in butter until tender. Place in a greased 8-in. square baking dish. , In a small bowl, stir the flour, broth, cream, salt and pepper until smooth; pour over onions. Sprinkle with cheeses. , Bake, uncovered, at 350° for 25-30 minutes or until cheese is golden brown and mixture is bubbly.

Nutrition Facts : Calories 203 calories, Fat 15g fat (9g saturated fat), Cholesterol 46mg cholesterol, Sodium 303mg sodium, Carbohydrate 13g carbohydrate (8g sugars, Fiber 2g fiber), Protein 6g protein.

FRUGAL GOURMET'S BAKED ONIONS AU GRATIN



Frugal Gourmet's Baked Onions Au Gratin image

Make and share this Frugal Gourmet's Baked Onions Au Gratin recipe from Food.com.

Provided by Queen Dana

Categories     Onions

Time 20m

Yield 8 serving(s)

Number Of Ingredients 8

8 medium yellow onions, peeled and sliced
2 tablespoons butter
1/4 cup dry sherry
1/8 teaspoon nutmeg
salt and pepper
1/4 cup heavy cream
1/2 cup grated swiss cheese
1/4 cup grated parmesan cheese or 1/4 cup romano cheese, for topping

Steps:

  • In two batches, sauté the onion in the butter in a large frying pan. Cook only until limp. Do not brown or discolor.
  • Deglaze the pan, or remove the onion from the pan and pour sherry, scrapping the pan with a wooden spoon to dissolve the brown, toasted onions.
  • Mix the onions, the sherry, nutmeg, salt, pepper and heavy cream together and place in a baking dish. Top with the Swiss and then Parmesan or Romano.
  • Bake at 350 until top is a bit brown and bubbling, 15 - 20 minutes.

Nutrition Facts : Calories 140.6, Fat 8.5, SaturatedFat 5.3, Cholesterol 26.8, Sodium 93.7, Carbohydrate 11.2, Fiber 1.9, Sugar 4.9, Protein 4.4

GRATINEED MUSTARD CREAMED ONIONS



Gratineed Mustard Creamed Onions image

Provided by Melissa Roberts

Categories     Milk/Cream     Mustard     Onion     Side     Broil     Thanksgiving     Vegetarian     Casserole/Gratin     Parmesan     Winter     Gourmet     Kidney Friendly     Pescatarian     Peanut Free     Tree Nut Free     Soy Free     Kosher

Yield Makes 8 servings

Number Of Ingredients 10

2 pound white pearl onions
2 tablespoons unsalted butter
2 tablespoons all-purpose flour
1 cup whole milk
3 tablespoons cream Sherry
1 tablespoon grainy mustard
1 tablespoon Dijon mustard
1/4 teaspoon grated nutmeg
1/2 cup grated Parmigiano-Reggiano
Equipment: a 2-qt shallow gratin or other flameproof baking dish (2 inches deep)

Steps:

  • Cook onions in a large heavy pot of boiling salted water (2 teaspoons salt for 4 quarts water) until just tender, 25 to 30 minutes. Reserve 1 cup cooking water, then drain (reserve pot). Cool onions to warm, then peel.
  • Melt butter in dry pot over medium heat. Add flour and cook, stirring, 2 minutes. Whisk in reserved cooking water, milk, and Sherry and cook, whisking frequently, until mixture is thickened, about 8 minutes. Whisk in mustards, nutmeg, and 1/2 teaspoon each of salt and pepper. Add onions to sauce and simmer 5 minutes.
  • Preheat broiler.
  • Transfer creamed onions to baking dish and sprinkle evenly with cheese. Broil 4 to 5 inches from heat until top is golden brown and bubbling, about 3 minutes.

BAKED ONIONS AU GRATIN



Baked Onions Au Gratin image

This is one of my mother's recipes. Everytime she makes it for a party or brunch, everyone demands the recipe! This dish is rich and good by itself as a side dish, or put it on some crusty bread! Enjoy!

Provided by KPD123

Categories     Brunch

Time 30m

Yield 4-6 serving(s)

Number Of Ingredients 7

6 -9 white onions or 6 -9 yellow onions, sliced 1/4-inch thick
2 tablespoons butter
1/2 cup heavy whipping cream
1/4 cup dry white wine
1/8 teaspoon black pepper
1/4 cup parmesan cheese, grated
1 1/2 cups swiss cheese, shredded

Steps:

  • Saute onions in butter.
  • Place onions in a 9 x 13 casserole dish with a slotted spoon.
  • Stir in heavy whipping cream, white wine, and black pepper. Mix well.
  • Top with cheeses.
  • Bake at 375 degrees for 15-20 minutes.

ONION-PARMESAN GRATIN



Onion-Parmesan Gratin image

Provided by Molly O'Neill

Categories     easy, quick

Time 25m

Yield 6 servings

Number Of Ingredients 8

2 pounds yellow onions, peeled
4 tablespoons unsalted butter
3/4 teaspoon freshly ground whole cloves
1/2 teaspoon fresh thyme leaves
Fine sea salt, to taste
2 large egg yolks
1/4 cup heavy cream
1/2 cup freshly grated Parmesan cheese

Steps:

  • Slice the onions in half lengthwise. Place, cut side down, on a cutting board and slice crosswise into very thin slices, and set aside.
  • In a large, nonstick skillet, combine the butter, cloves, onions, thyme and salt. Cover and cook over very low heat until the onions are very soft, about 10 minutes. Taste and adjust the seasoning.
  • Transfer the onion mixture to a gratin dish and smooth it with the back of a spoon. The recipe can be prepared several hours in advance up to this point. Cover and store at room temperature.
  • Preheat the broiler. In a small bowl, combine the egg yolks and cream and whisk together well. Stir in the cheese. Pour the mixture over the onions in the baking dish. Place the baking dish under the broiler about 2 inches from the heat. Broil until the top is sizzling and golden, about 1 to 2 minutes. Serve immediately as a vegetable course or as an accompaniment to meat dishes.

Nutrition Facts : @context http, Calories 219, UnsaturatedFat 5 grams, Carbohydrate 15 grams, Fat 15 grams, Fiber 3 grams, Protein 6 grams, SaturatedFat 9 grams, Sodium 433 milligrams, Sugar 7 grams, TransFat 0 grams

Tips:

  • Choose the right onions: Use yellow or white onions for a milder flavor, or red onions for a more pungent flavor.
  • Slice the onions thinly: This will help them cook evenly and quickly.
  • Use a good quality cheese: Parmesan cheese is a classic choice for onion gratin, but you can also use Gruyère, Cheddar, or a combination of cheeses.
  • Don't overcrowd the pan: Make sure there is enough space between the onions so that they can cook evenly.
  • Cook the onions slowly: This will help them caramelize and develop a rich flavor.
  • Add the cheese at the end: This will prevent it from burning.
  • Serve immediately: Onion gratin is best served hot out of the oven.

Conclusion:

Onion gratin is a classic French dish that is easy to make and always a crowd-pleaser. It is a perfect side dish for any occasion, from a weeknight dinner to a special holiday meal. With its rich, cheesy flavor and crispy top, onion gratin is sure to be a hit with everyone at the table.

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