Ingredients
- 2 tablespoons butter
- 4 large yellow onions, peeled and sliced thin
- 2 cloves garlic, peeled and minced
- 1 teaspoon sugar
- 4 cups beef broth
- 1/2 teaspoon Worcestershire sauce
- 1 tablespoon fresh thyme leaves
- 1/4 teaspoon freshly ground black pepper
- 1/4 teaspoon sea salt
- 1/2 cup croutons
- 1/4 cup grated Gruyere cheese
Directions
- In a large saucepan, melt the butter over medium heat. Add the onions and garlic and cook, stirring occasionally, until the onions are golden and caramelized, about 25 minutes.
- Add the sugar, beef broth, Worcestershire sauce, thyme, pepper, and salt. Bring to a boil, then reduce the heat and simmer for 10 minutes.
- Preheat the oven to 350°F. Place 4 oven-safe soup bowls on a baking sheet. Divide the soup among the bowls and top each with croutons and cheese. Bake for 15 minutes or until the cheese is melted and bubbly.
- Serve hot.
Interesting Facts
- The origin of French Onion Soup is uncertain, but it is believed to have first appeared in the 18th century.
- The cheese traditionally used for this soup is Gruyère, but other cheeses can be substituted, including Swiss, Emmental, or Comté.
- This soup can be made ahead of time and reheated when ready to serve.