Soupe à l'Oignon Gratinée

Ingredients

• 3 large Yellow onions, thinly sliced
• 3 tbsp Unsalted butter
• 1 tbsp Olive oil
• 4 cups Beef broth
• 1/2 cup Dry white wine(optional)
• 3 sprigs Fresh thyme(optional)
• 1 Bay leaf
• 1/2 tsp Salt
• 1/4 tsp Black pepper
• 4 Baguette slices
• 1 cup Gruyère cheese, shredded

Instructions

1. 1

   Melt butter with olive oil in a large pot over medium heat. Add sliced onions and cook, stirring occasionally, for 25-30 minutes until deeply golden and caramelized.

2. 2

   Add white wine (if using) and scrape up browned bits; simmer 2 minutes until reduced. Stir in broth, thyme, bay leaf, salt, and pepper. Simmer 10 minutes, then remove bay leaf and thyme.

3. 3

   Preheat broiler. Toast baguette slices under the broiler for 1-2 minutes per side until golden.

4. 4

   Ladle soup into two oven-safe bowls, top each with 2 toast slices and a generous layer of Gruyère. Broil 2-3 minutes until cheese is melted and bubbly. Serve hot.