French onion soup is a classic dish that captures the essence of French cuisine with its rich flavors and comforting warmth. This savory comfort food is celebrated for its caramelized onions, which provide a deep, sweet flavor that forms the foundation of the soup. Topped with a generous layer of melted Gruyère cheese, this dish transforms a simple onion soup into an indulgent experience.
Ingredients
Scale:
4 large yellow onions, thinly sliced
4 tablespoons unsalted butter
1 tablespoon olive oil
1 teaspoon sugar
4 cups homemade beef broth
1 cup dry white wine
2 teaspoons fresh thyme leaves
Salt and freshly ground black pepper, to taste
1 French baguette, sliced into 1-inch pieces
2 cups grated Gruyère cheese
1/2 cup grated Parmesan cheese
Instructions
In a large, heavy-bottomed pot, heat the olive oil and butter over medium heat. Allow the butter to melt completely, combining with the oil to create a flavorful base.
Add the sliced onions and sugar to the pot. Cook the onions, stirring frequently, for about 30-40 minutes, or until they are deeply caramelized and golden brown.
Once the onions are caramelized, add the white wine to deglaze the pot, scraping up any browned bits from the bottom. Allow the wine to reduce for about 5 minutes.
Pour in the beef broth and add the thyme. Season with salt and pepper. Bring the soup to a simmer and cook for an additional 20 minutes.
While the soup simmers, preheat your oven to 350°F (175°C). Arrange the sliced baguette on a baking sheet and toast in the oven until golden brown, about 10 minutes.
After the soup is ready, ladle it into oven-safe bowls. Top each bowl with a few slices of toasted baguette and generously sprinkle with Gruyère and Parmesan cheese.
Place the bowls on a baking sheet and broil in the oven for 2-3 minutes until the cheese is bubbly and golden brown.
Carefully remove the bowls from the oven and let them cool slightly before serving.
