Best 3 French Onion Soup Casserole Recipes

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Welcome to the world of flavors with our exploration of the classic "French Onion Soup Casserole"! This hearty and comforting dish is a true culinary delight that combines the essence of French cuisine with the richness of a casserole. Imagine savoring tender onions caramelized to perfection, nestled in a velvety broth infused with the essence of beef and herbs. Topped with a layer of melted cheese and crispy breadcrumb, this casserole promises an explosion of flavors in every bite. Whether you're a seasoned chef or a culinary enthusiast seeking a new adventure, this article will guide you through the process of crafting the perfect French Onion Soup Casserole that will leave your taste buds yearning for more.

Let's cook with our recipes!

FRENCH ONION SOUP CASSEROLE



French Onion Soup Casserole image

This rich, soup-inspired casserole makes a cheesy, ultra-comforting side dish (our tasters said it would make a great addition to a holiday spread) without the fussiness of a soup course. Make the onions ahead to save time.

Provided by Food Network Kitchen

Categories     main-dish

Time 2h5m

Yield about 6 servings

Number Of Ingredients 12

3 tablespoons unsalted butter
2 tablespoons olive oil
4 medium yellow onions, thinly sliced
2 stalks celery, peeled and thinly sliced
Kosher salt and freshly ground black pepper
2 bay leaves
2 to 3 sprigs thyme, plus 1 teaspoon fresh leaves
1 tablespoon all-purpose flour
1 cup low-sodium beef broth
1/2 cup dry white wine
1/2 baguette, thinly sliced (about 4 ounces)
4 ounces shredded Gruyere cheese (about 2 cups)

Steps:

  • Melt the butter and oil in a large Dutch oven or pot over medium heat. Add half the onions and celery, 1/2 teaspoon salt and a few grinds of pepper. Top with the remaining onions and celery, 1/2 teaspoon salt, a few grinds of pepper, the bay leaves and the thyme sprigs. Cook, uncovered and stirring occasionally, until all the liquid evaporates and the onions are very soft and golden brown, 45 minutes to 1 hour. (If the onions are soft but could be more golden, increase the heat slightly for a few minutes toward the end of cooking.)
  • Add the flour, and stir until completely absorbed, about 1 minute. Add the broth and wine, and simmer until almost completely evaporated, about 2 minutes. Remove from the heat, and let cool for a few minutes. Remove the bay leaves and thyme stems. (The onions can be made, cooled and refrigerated up to 2 days ahead.)
  • Meanwhile, preheat the oven to 350 degrees F. Bake the baguette slices on a baking sheet until they're slightly toasted but not golden, 2 to 3 minutes per side. Let cool.
  • Shingle and slightly overlap half the bread slices in a 3-quart flameproof baking dish. Top with the onion mixture in 1 layer. Shingle, overlapping, with the remaining bread. Sprinkle the Gruyere over the top. Cover with foil, and bake until the onion mixture is hot and the cheese is melted, about 40 minutes. Remove the foil, switch the oven from bake to broil and broil until the top is golden in spots. Sprinkle the thyme leaves over the top. Serve hot.

FRENCH ONION SOUP CASSEROLE



French Onion Soup Casserole image

I love this casserole at Thanksgiving!

Provided by Ursula

Categories     Side Dish     Casseroles

Time 30m

Yield 6

Number Of Ingredients 9

5 tablespoons salted butter, divided
4 medium onions, chopped
2 tablespoons all-purpose flour
1 pinch ground black pepper
¾ cup beef broth
¼ cup dry sherry
1 ½ cups plain croutons
½ cup shredded Swiss cheese
3 tablespoons grated Parmesan cheese

Steps:

  • Set an oven rack about 6 inches from the heat source and preheat the oven's broiler.
  • Heat 3 tablespoons of butter in a pot over medium-high heat. Cook onions in the hot butter until tender, 5 to 7 minutes. Blend in flour and pepper. Add broth and sherry; cook and stir until thickened and bubbly. Pour into a 1-quart casserole dish.
  • Melt remaining 2 tablespoons butter and toss with croutons. Spoon over onion mixture. Sprinkle with Swiss and Parmesan cheeses.
  • Place under the preheated broiler just until cheeses melt, about 5 minutes. Serve immediately.

Nutrition Facts : Calories 254.2 calories, Carbohydrate 17.2 g, Cholesterol 46.3 mg, Fat 16.6 g, Fiber 1.7 g, Protein 8.9 g, SaturatedFat 10.3 g, Sodium 359.3 mg, Sugar 3.5 g

FRENCH ONION SOUP CASSEROLE RECIPE - (4.5/5)



French Onion Soup Casserole Recipe - (4.5/5) image

Provided by á-24940

Number Of Ingredients 8

2-3 Tbs butter or margarine
3 large sweet onions or 4 medium white or yellow onions
2 c. shredded Swiss cheese (8 oz.)
1 can cream of chicken soup, undiluted**
2/3 c. milk
1 tsp. soy sauce
8 or so slices of French bread
You can substitute cream of mushroom soup for cream of chicken to make vegetarian.

Steps:

  • Slice onions and try not to cry. With this many onions, its hard. Melt butter in a saute pan over medium heat, and add onions. Saute onions until clear, a little brown is ok. In a shallow 2 qt. casserole pan, layer onions, 2/3 of cheese and pepper to taste. Melt butter in a saute pan over medium heat, and add onions. Saute onions until clear, a little brown is ok. In a shallow 2 qt. casserole pan, layer onions, 2/3 of cheese and pepper to taste. In a sauce pan, heat soup, milk, and soy sauce, stirring to blend. Pour soup mixture in a casserole and stir gently to mix. Top with bread slices. Bake at 350 uncovered for 15 minutes. After 15 minutes, top of bread should be nice and toasted. Push bread slices under the sauce and top with the remaining cheese Place casserole back in oven and finish baking for 15 more minutes.

Tips:

  • Use high-quality ingredients for the best flavor. Look for fresh onions, flavorful broth, and a good quality Gruyère cheese.
  • Don't be afraid to caramelize the onions slowly. This step takes time but is worth it for the deep, rich flavor it imparts to the soup.
  • If you don't have time to caramelize the onions, you can use a shortcut method by sautéing them in butter until they are softened and browned.
  • Don't overcrowd the pan when cooking the onions. This will prevent them from caramelizing properly.
  • Season the soup to taste with salt and pepper. You may also want to add a pinch of cayenne pepper for a little spice.
  • When assembling the casserole, be sure to layer the ingredients in the order specified in the recipe. This will help to ensure that the soup is cooked evenly.
  • Bake the casserole until the cheese is melted and bubbly. This will take about 20 minutes.
  • Let the casserole cool for a few minutes before serving. This will help to prevent the cheese from becoming stringy.

Conclusion:

French onion soup casserole is a delicious and easy-to-make dish that is perfect for a cold winter day. The rich, flavorful broth, caramelized onions, and melted Gruyère cheese make this soup a surefire hit with everyone who tries it. Whether you are serving it as a main course or a side dish, this casserole is sure to be a hit.

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