French Onion Soup Recipe
This French onion soup recipe is rich, cozy, and full of flavor! Made with caramelized onions, butter, beef broth, and melted cheese, it’s the ultimate comfort food. Save this classic recipe now!
Equipment
- Large heavy-bottom pot or Dutch oven
- Wooden spoon
- Knife and cutting board
- Ladle
- Oven-safe bowls
- Baking tray
Ingredients
- 4 large onions thinly sliced
- 3 tablespoons butter
- 1 tablespoon olive oil
- 4 cups beef broth
- 1 cup water
- 1/2 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon sugar optional, helps caramelization
- 1 teaspoon thyme dried or fresh
- 1 tablespoon flour optional, for slight thickening
- 1/2 cup grated cheese Gruyère or mozzarella
- 4 slices bread toasted
Instructions
Step 1: Caramelize the Onions
- Heat butter and olive oil in a large pot over medium heat. Add sliced onions and cook slowly, stirring often, until they turn golden brown. This can take 25–30 minutes.
Step 2: Add Seasoning
- Add salt, pepper, and sugar. Stir well and continue cooking until onions are deeply caramelized.
Step 3: Add Flour (Optional)
- Sprinkle flour over the onions and stir for 1–2 minutes.
Step 4: Add Broth
- Pour in beef broth and water. Stir to combine and bring to a gentle simmer.
Step 5: Simmer
- Let the soup simmer for 15–20 minutes to develop flavor.
Step 6: Prepare Toppings
- Toast bread slices and grate cheese.
Step 7: Assemble
- Ladle soup into oven-safe bowls, place toasted bread on top, and sprinkle cheese generously.
Step 8: Broil
- Place bowls under a broiler until cheese melts and becomes golden.
Step 9: Serve
- Serve hot and enjoy immediately.