Description
Indulge in the rich flavors of French Onion Soup with this comforting casserole. Caramelized onions, savory broth, toasty bread, and gooey cheese come together in a hearty dish perfect for chilly nights.
Ingredients
Scale
Onion Mixture:
- 4 large yellow onions, thinly sliced
- 3 tablespoons unsalted butter
- 1 tablespoon olive oil
- 1 teaspoon sugar
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
- 1 tablespoon fresh thyme leaves or 1 teaspoon dried thyme
- 2 cloves garlic, minced
- 1/4 cup dry white wine (optional)
- 1 tablespoon all-purpose flour
- 2 cups low-sodium beef broth
- 1 tablespoon Worcestershire sauce
Assembly:
- 6 slices French bread, lightly toasted
- 2 cups shredded Gruyère cheese or Swiss cheese
Instructions
- Preheat and Caramelize Onions: Preheat oven to 375°F (190°C). Cook onions with butter, olive oil, sugar, salt, and pepper until caramelized. Add thyme, garlic, and white wine.
- Make Sauce and Layer: Stir in flour, then add beef broth and Worcestershire sauce. Layer onion mixture, bread, and cheese in a casserole dish.
- Bake: Bake for 20-25 minutes until cheese is bubbly. Broil for a golden top if desired. Rest before serving.
Notes
- For extra crunch, brush toast with olive oil before baking.
- Substitute mozzarella for Gruyère if needed.
- To make it vegetarian, use vegetable broth instead of beef broth.
- Prep Time: 15 minutes
- Cook Time: 55 minutes
- Category: Main Course
- Method: Baking, Stovetop
- Cuisine: French-Inspired
Nutrition
- Serving Size: 1 portion
- Calories: 360
- Sugar: 6g
- Sodium: 620mg
- Fat: 20g
- Saturated Fat: 12g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 14g
- Cholesterol: 55mg
