French Onion Soup is a beloved classic that embodies the essence of French cuisine. This hearty soup features sweet caramelized onions simmered in a robust beef broth, enhanced by the earthy notes of thyme and a hint of dry white wine. Topped with a golden-brown layer of melted Gruyère or Swiss cheese and toasted baguette slices, it's a sensory delight with every spoonful. The contrast of rich, savory flavors and the satisfying crunch of toasted bread creates a harmonious symphony of taste and texture. French Onion Soup is a timeless favorite, perfect for cozy evenings or as an elegant starter for a special meal. Savor the warmth and depth of flavors in this iconic dish that encapsulates the artistry of French culinary tradition.
In your Dutch oven, melt the butter and olive oil over medium-low heat. Add the thinly sliced onions, sugar, salt, and pepper. Stir well to coat the onions in the butter and oil mixture.
Cook the onions, stirring occasionally, for about 30-40 minutes, or until they become caramelized and turn a deep golden brown color.
Add the minced garlic to the caramelized onions and cook for an additional 1-2 minutes until fragrant.
If using, pour in the dry white wine to deglaze the pot, scraping up any browned bits from the bottom. Allow the wine to simmer for a few minutes to reduce slightly.
Add the beef broth and bay leaves to the pot. Bring the soup to a simmer, then reduce the heat to low, cover, and let it simmer for about 30 minutes to allow the flavors to meld. Remove and discard the bay leaves.
While the soup simmers, preheat your oven's broiler.
Place the slices of French bread on a baking sheet and toast them under the broiler until they turn golden brown. Keep a close eye on them to prevent burning. Remove the toasted bread from the oven.
To serve, ladle the hot soup into oven-safe soup bowls. Place a slice of toasted French bread on top of each bowl, covering the soup. Sprinkle a generous amount of grated Gruyère or Swiss cheese on top of the bread.
Place the soup bowls under the broiler until the cheese melts and turns bubbly and golden brown, about 2-3 minutes.
Carefully remove the soup bowls from the oven (they will be hot) and garnish with fresh thyme sprigs if desired.
Serve the French Onion Soup hot and enjoy!
Notes
This classic French Onion Soup is known for its rich, savory flavors and the gooey, melted cheese topping. It's a comforting and elegant dish that's perfect for a special occasion or a cozy meal.