Onion Soup
Easy homemade onion soup recipe with caramelized onions, beef broth, garlic, herbs, and cheesy toasted bread. Classic French onion soup that’s flavorful, comforting, and perfect for weeknight dinners.
Ingredients
- 4 large onions thinly sliced
- 3 tablespoons butter
- 1 tablespoon olive oil
- 2 cloves garlic minced
- 1 teaspoon sugar optional, helps caramelize
- 1 tablespoon flour optional, for thicker soup
- 6 cups beef broth or vegetable broth
- ½ cup white wine optional
- 1 bay leaf
- 1 teaspoon thyme fresh or dried
- Salt and pepper to taste
- Baguette slices for topping
- Grated Gruyère or mozzarella cheese for topping
Instructions
Caramelize The Onions
- Heat butter and olive oil in a large pot over medium heat.
- Add sliced onions and cook slowly for 25–30 minutes until golden brown.
- Add sugar to help caramelize if desired.
Add Garlic & Flour
- Stir in minced garlic and cook for 1 minute.
- Add flour and mix well (optional for thicker soup).
Deglaze The Pot
- Pour in white wine and scrape the bottom to release flavors.
- Let it simmer for 2–3 minutes.
Add Broth & Herbs
- Add beef broth, bay leaf, thyme, salt, and pepper.
- Bring to a boil, then reduce heat and simmer for 20 minutes.
Prepare Cheese Topping
- Toast baguette slices.
- Top each with grated cheese.
Serve
- Ladle hot onion soup into bowls.
- Place the cheesy toast on top and let the cheese melt (broil if you want a bubbling top).