This classic French soup is a rich and flavorful dish that features caramelized onions in a savory beef broth, topped with a layer of melted Gruyere cheese and served with a slice of crusty bread. It’s the perfect comfort food for a chilly day.
In a large Dutch oven or stockpot, melt the butter and olive oil over medium heat.
Add the sliced onions, garlic, and thyme to the pot. Cook for 30-40 minutes, stirring occasionally, until the onions are caramelized and golden brown.
Pour in the white wine and cook for an additional 5 minutes, or until the wine has evaporated.
Add the beef broth and bay leaf to the pot. Bring to a boil, then reduce the heat and let simmer for 30-40 minutes, or until the flavors have melded together.
Season the soup with salt and pepper, to taste.
Preheat the oven to 350°F (177°C).
Place the slices of bread on a baking sheet and toast in the oven for 5-7 minutes, or until lightly golden brown.
Remove the bay leaf from the soup.
Ladle the soup into oven-safe bowls. Place a slice of toasted bread on top of each bowl and sprinkle with shredded Gruyere cheese.
Place the bowls on a baking sheet and broil in the oven for 2-3 minutes, or until the cheese is melted and bubbly.
Serve hot, garnished with additional fresh thyme if desired.
This classic French soup is a rich and flavorful dish that features caramelized onions in a savory beef broth, topped with a layer of melted Gruyere cheese and served with a slice of crusty bread. It’s the perfect comfort food for a chilly day.