Why Make This Recipe
French Onion Soup is a classic dish that warms the heart and soul. It is rich, savory, and packed with flavor. This delightful soup is perfect for chilly days or whenever you crave a comforting meal. With simple ingredients, you can create a delicious and satisfying dish that impresses friends and family alike.
How to Make French Onion Soup
Ingredients
- 6 large yellow onions, thinly sliced
- 4 tbsp unsalted butter
- 1 tbsp olive oil
- 8 cups beef broth
- 1 cup dry white wine
- 2 tbsp flour
- Salt and pepper to taste
- Baguette slices
- 1 1/2 cups shredded Gruyère cheese
Directions
- In a large pot, melt the butter and olive oil over medium heat. Add the onions and cook, stirring frequently, until they are caramelized, about 30-40 minutes.
- Sprinkle the flour over the caramelized onions and mix well. Cook for another 2 minutes.
- Slowly add the beef broth and white wine, stirring to combine. Bring to a simmer, seasoning with salt and pepper to taste.
- Let the soup simmer for at least 20 minutes.
- Preheat the oven broiler. Ladle the soup into oven-safe bowls, place a slice of baguette on top of each, and sprinkle the Gruyère cheese over the bread.
- Place the bowls under the broiler until the cheese is melted and bubbly, about 2-3 minutes.
- Serve hot.
How to Serve French Onion Soup
Serve French Onion Soup bubbling hot with a slice of toasted baguette on top, oozing with melted Gruyère cheese. It’s great as an appetizer or as a main course alongside a fresh salad.
How to Store French Onion Soup
If you have leftovers, let the soup cool to room temperature. Store it in an airtight container in the fridge for up to 3 days. For longer storage, you can freeze the soup (without the bread and cheese) for up to 3 months.
Tips to Make French Onion Soup
- Take your time caramelizing the onions; this step adds incredible depth of flavor.
- Use a good quality beef broth for the best taste.
- Experiment with different types of cheese like Swiss or mozzarella to suit your taste.
Variation
You can add fresh herbs like thyme or bay leaves while the soup simmers for extra flavor. Another variation is to use chicken broth for a lighter taste.
FAQs
1. Can I make French Onion Soup vegetarian?
Yes! Use vegetable broth instead of beef broth and skip the cheese or use a vegetarian cheese alternative.
2. How can I make this soup ahead of time?
You can prepare the soup and store it in the fridge. Just reheat it before serving and add the cheese right before broiling.
3. What can I serve with French Onion Soup?
This soup pairs well with a simple green salad, roasted vegetables, or even a sandwich for a complete meal.

French Onion Soup
Ingredients
Method
- In a large pot, melt the butter and olive oil over medium heat.
- Add the onions and cook, stirring frequently, until they are caramelized, about 30-40 minutes.
- Sprinkle the flour over the caramelized onions and mix well. Cook for another 2 minutes.
- Slowly add the beef broth and white wine, stirring to combine. Bring to a simmer, seasoning with salt and pepper to taste.
- Let the soup simmer for at least 20 minutes.
- Preheat the oven broiler.
- Ladle the soup into oven-safe bowls, place a slice of baguette on top of each, and sprinkle the Gruyère cheese over the bread.
- Place the bowls under the broiler until the cheese is melted and bubbly, about 2-3 minutes.