Heat the butter and olive oil in a large saucepan over medium heat. Add the sliced onions and sauté them until they are golden brown and caramelized, about 10 minutes. Stir frequently to prevent burning.
Step 2: Add The Soup
Pour the canned French onion soup into the saucepan with the caramelized onions. Add a cup of water (or broth for more flavor). Stir well and bring the mixture to a gentle boil. Reduce the heat to low and let it simmer for 10 minutes. Season with salt, pepper, and fresh thyme if desired.
Step 3: Prepare The Baguette
While the soup simmers, preheat your oven to 400°F (200°C). Place the baguette slices on a baking sheet and toast them in the oven for 5 minutes until they are crisp and lightly golden.
Step 4: Assemble And Broil
If you have oven-safe ramekins, ladle the soup into them. Top each ramekin with a toasted baguette slice and a generous handful of shredded Gruyère cheese. Place the ramekins under the broiler for 3-5 minutes, or until the cheese is bubbly and golden. If you don’t have ramekins, you can top the soup in bowls with cheese and serve the toasted baguette on the side.
Step 5: Serve
Ladle the soup into bowls if you didn’t use ramekins. Garnish with additional thyme if you like. Serve hot and enjoy!
Notes
Canned French onion soup is a convenient base, but adding fresh caramelized onions and quality cheese elevates it to restaurant-quality. This recipe allows me to enjoy a comforting, flavorful soup with minimal effort and maximum flavor.