French Onion Soup

Name: French Onion Soup
Prep time: 10 min
Cook time: 1 h
Total time: 1 h 15 min
Yield: 6
Ingredients: Ingredients; 4 large yellow onions, thinly sliced; 3 tablespoons butter; 2 tablespoons olive oil; 1 teaspoon sugar; 2 cloves garlic, minced; 1/2 cup dry white wine (optional); 6 cups beef broth (or vegetable broth for a vegetarian option); 1 tablespoon Worcestershire sauce; 2 bay leaves; 1 teaspoon fresh thyme (or 1/2 teaspoon dried thyme); Salt and pepper, to taste; 1 baguette, sliced; 1 1/2 cups Gruyère or Swiss cheese, grated