French Onion Soup

Caramelize the onions:
In a large pot, heat the butter and olive oil over medium heat. Add the thinly sliced onions, sugar, and a pinch of salt. Cook the onions, stirring occasionally, for about 30-40 minutes until they become golden brown and caramelized.
Add garlic and deglaze:
Once the onions are caramelized, add the minced garlic and cook for about 1 minute until fragrant. If using wine, pour it in now to deglaze the pan, scraping up any bits from the bottom of the pot. Let the wine reduce for 2-3 minutes.
Simmer the soup:
Add the beef broth, thyme, and bay leaf to the pot. Bring the mixture to a boil, then reduce the heat and let it simmer for 20-30 minutes. Season with salt and pepper to taste.
Prepare the bread:
While the soup is simmering, toast the baguette slices until they are crispy and golden. Set them aside.
Assemble the soup:
Preheat the oven to 375°F (190°C). Ladle the soup into oven-safe bowls. Place a slice of toasted baguette on top of each bowl and sprinkle generously with grated Gruyère cheese.
Broil the soup:
Place the bowls under the broiler for 3-5 minutes, or until the cheese is melted and golden brown.
Serve:
Remove from the oven and let cool for a minute before serving. Garnish with extra thyme, if desired, and enjoy your delicious, cheesy French Onion Soup!
This soup is perfect for cozy nights, offering a rich, savory flavor topped with melted cheese and crispy bread. Enjoy!