Ingredients

• Unsalted butter - ¼ cup
• Olive oil - 1 tablespoon
• Yellow onions - 4 large, thinly sliced
• Salt - 1 teaspoon
• Sugar - ½ teaspoon
• All-purpose flour - 1 tablespoon
• Beef broth - 8 cups
• Dry white wine - ½ cup
• Bay leaf - 1
• Fresh thyme - 1 teaspoon
• Baguette - 1, sliced and toasted
• Gruyère cheese - 2 cups, grated

Instructions

1. 1.

   In a large pot, melt butter with olive oil over medium heat.

2. 2.

   Add sliced onions, salt, and sugar; cook until onions are caramelized, about 30 minutes.

3. 3.

   Stir in flour and cook for 2 minutes.

4. 4.

   Add beef broth, white wine, bay leaf, and thyme. Bring to a boil, then reduce heat and simmer for 30 minutes.

5. 5.

   Preheat the oven broiler.

6. 6.

   Discard bay leaf and ladle soup into oven-safe bowls.

7. 7.

   Top each bowl with toasted baguette slices and grated Gruyère cheese.

8. 8.

   Place bowls under the broiler until cheese is melted and bubbly, about 3-5 minutes.

9. 9.

   Serve hot, garnished with additional thyme if desired.

Nutritional Facts