Description
French Onion Soup is a classic French dish featuring slowly caramelized sweet onions simmered in a savory beef or vegetable broth, topped with toasted baguette slices and melted Gruyère cheese. This comforting soup boasts rich, deep flavors and a golden, bubbly cheese crust that makes it perfect for cozy dinners.
Ingredients
Scale
Soup Ingredients
- 6 large sweet onions (yellow or Vidalia), thinly sliced
- 3 tablespoons butter
- 1 tablespoon olive oil
- 6 cups beef broth (or vegetable broth for vegetarian version)
- 1/2 cup dry white wine or sherry
- 2-3 sprigs fresh thyme
- Salt, to taste
- Freshly ground black pepper, to taste
Bread and Cheese Topping
- 1 baguette, sliced and toasted
- 2 cups grated Gruyère cheese (or Swiss, mozzarella, or fontina as alternatives)
Instructions
- Caramelize the Onions: Slice the onions thinly. In a large pan over low heat, melt the butter with olive oil. Add the onions and cook slowly for 30 to 40 minutes, stirring frequently. Allow the onions to become a rich golden brown and develop a sweet flavor, but take care not to burn them.
- Deglaze the Pan: Pour in the dry white wine or sherry. Scrape the bottom of the pan with a spatula to lift any browned bits. Let the liquid reduce slightly to concentrate the flavors.
- Add Broth and Herbs: Add the beef or vegetable broth along with the fresh thyme sprigs into the pan. Season with salt and freshly ground black pepper. Simmer the soup gently for 20 to 30 minutes, allowing the flavors to meld together.
- Prepare the Bread and Cheese: Slice the baguette into rounds and toast them in an oven or toaster until crisp. Grate the Gruyère cheese and set aside.
- Assemble and Broil: Ladle the hot soup into oven-safe bowls. Place a toasted baguette slice on top of each bowl, then cover generously with the grated Gruyère cheese. Place the bowls under a broiler for 3 to 5 minutes until the cheese is bubbly and golden brown.
Notes
- For a vegetarian version, use vegetable broth instead of beef broth.
- You can substitute Gruyère cheese with Swiss, mozzarella, or fontina if preferred.
- Be patient while caramelizing onions to develop maximum sweetness and depth of flavor.
- Ensure the soup bowls are oven-safe before broiling.
- Serve immediately as the cheese topping will harden upon cooling.
