French Onion Soup Recipe – A Timeless Classic
French Onion Soup is a rich, flavorful, and comforting dish that has stood the test of time. Originating from France, this soup is made with caramelized onions, beef broth, white wine, and topped with a cheesy, crispy baguette. It is a perfect combination of savory and slightly sweet flavors with a heartwarming aroma. This dish is an excellent choice for cold winter nights, special occasions, or when you simply crave something indulgent and delicious.
Making a French Onion Soup Recipe from scratch is easier than you might think. With patience and a few simple ingredients, you can recreate this bistro classic right at home. Below, we provide a detailed recipe, including preparation time, cooking instructions, nutrition information, and everything you need to know to make this dish perfect every time.
Recipe Details
- Prep Time: 15 minutes
- Active Time: 1 hour
- Resting Time: 5 minutes
- Total Time: 1 hour 20 minutes
- Cuisine: French
- Course: Soup
- Servings: 4
- Calories per Serving: 420 kcal
Equipment Needed
- Large heavy-bottomed pot or Dutch oven
- Wooden spoon for stirring
- Oven-safe bowls
- Baking sheet
- Ladle
- Chef’s knife
- Cutting board
Ingredients
For the Soup:
- 4 large yellow onions, thinly sliced
- 3 tbsp unsalted butter
- 1 tbsp olive oil
- 1 tsp salt
- 1/2 tsp black pepper
- 1/2 tsp sugar (to help caramelize the onions)
- 2 cloves garlic, minced
- 1/2 cup dry white wine (optional, but recommended)
- 6 cups beef broth (low sodium)
- 2 sprigs fresh thyme (or 1/2 tsp dried thyme)
- 1 bay leaf
- 1 tbsp Worcestershire sauce (optional, for extra depth of flavor)
For the Topping:
- 1 baguette, sliced into 1-inch pieces
- 2 cups shredded Gruyère cheese
- 1/2 cup Parmesan cheese (optional)
Instructions
Step 1: Caramelizing the Onions
- In a large pot or Dutch oven, melt the butter and olive oil over medium-low heat.
- Add the sliced onions, salt, pepper, and sugar. Stir to coat the onions in butter.
- Cook the onions slowly, stirring occasionally, for about 30-40 minutes until they become soft and deeply caramelized. If they begin to stick to the bottom, add a splash of water.
- Add the minced garlic and cook for another minute until fragrant.
Step 2: Deglazing the Pot
- Pour in the white wine and scrape up any browned bits from the bottom of the pot. Allow the wine to simmer until it reduces by half (about 3 minutes).
Step 3: Simmering the Soup
- Add the beef broth, fresh thyme, bay leaf, and Worcestershire sauce.
- Bring the soup to a gentle simmer and cook uncovered for 20 minutes to develop flavors.
- Remove the thyme sprigs and bay leaf before serving.
Step 4: Preparing the Bread Topping
- While the soup is simmering, preheat the oven to 375°F (190°C).
- Arrange the baguette slices on a baking sheet and toast them in the oven for about 5 minutes until crisp.
Step 5: Assembling the Soup
- Ladle the hot soup into oven-safe bowls.
- Place a toasted baguette slice on top of each bowl.
- Sprinkle generously with Gruyère cheese and Parmesan cheese.
- Place the bowls on a baking sheet and broil in the oven for 3-5 minutes until the cheese is melted and bubbly.
Step 6: Serving the Soup
- Let the soup cool for a few minutes before serving.
- Garnish with fresh thyme leaves (optional) and enjoy!
Nutrition Information (Per Serving)
- Calories: 420 kcal
- Carbohydrates: 38g
- Protein: 18g
- Fat: 20g
- Saturated Fat: 10g
- Cholesterol: 50mg
- Fiber: 4g
- Sodium: 950mg
- Sugar: 8g
Tips for the Best French Onion Soup
- Use Good Quality Broth: A rich beef broth makes all the difference. Homemade or high-quality store-bought broth will yield the best results.
- Slowly Caramelize the Onions: Rushing this step can prevent the deep, sweet flavor from developing properly.
- Choose the Right Cheese: Gruyère is the traditional choice because it melts beautifully and adds a nutty flavor.
- Don’t Skip the Bread: The crispy baguette soaks up the soup and creates a wonderful texture contrast.
- Add Depth of Flavor: Worcestershire sauce or a splash of brandy can enhance the taste.
Conclusion
This French Onion Soup Recipe is a timeless dish that brings warmth, comfort, and indulgence to your table. Whether you’re preparing it for a cozy dinner or a special occasion, its rich flavors and gooey cheese topping make it an unforgettable meal. Serve it with a side of salad or roasted vegetables for a complete dining experience. Try this recipe today and enjoy a taste of classic French cuisine!
I am Ashley Doyle, Senior Specialist in Food & Policy at The Humane Society of the United States and editor at airfryermama.com. I am passionate about transforming our global food system by promoting delicious, climate-friendly, plant-based foods. After transitioning from law to food and public policy, I now work with major food service companies to develop plant-based initiatives and animal welfare policies. My goal is to drive institutional change to combat climate change and improve our food system.