Ingredients:
- 2 large yellow onions, thinly sliced
- 4 tablespoons unsalted butter
- 2 cloves garlic, minced
- 2 tablespoons flour
- 6 cups beef broth
- 1 cup dry white wine
- 2 bay leaves
- Salt and freshly ground black pepper, to taste
- 8 thin slices of French bread, toasted
- 2 cups grated Gruyère cheese
Instructions:
- In a large heavy-bottomed pot or Dutch oven, melt the butter over medium heat.
- Add the sliced onions and cook until they are soft and golden brown, about 25-30 minutes. Stir occasionally.
- Add the garlic and cook for an additional 2 minutes.
- Sprinkle in the flour and stir to combine. Cook for 2-3 minutes.
- Gradually add the beef broth and white wine, stirring constantly to avoid lumps.
- Add the bay leaves, salt, and pepper, and bring to a boil. Reduce heat to low and let the soup simmer for 30 minutes.
- Preheat the oven to 400°F (200°C).
- Place the toasted bread slices on the bottom of oven-safe bowls and ladle the hot soup over them.
- Sprinkle grated Gruyère cheese on top of the bread and soup.
- Place the bowls on a baking sheet and bake in the preheated oven until the cheese is melted and bubbly, about 10-15 minutes.
- Serve hot. Enjoy