Best French Onion Soup

A comforting soup filled with rich flavors, sweet caramelized onions, and topped with gooey melted cheese, perfect for any time of the year.

French Onion Soup is a classic dish that warms the heart and soul. This comforting soup, filled with rich flavors and topped with melted cheese, is a delightful treat that can be enjoyed at any time of the year.

Why Make This Recipe

Making French Onion Soup at home is rewarding. It allows you to enjoy restaurant-quality flavors right in your kitchen. The combination of sweet, caramelized onions, beef broth, and gooey cheese creates a dish that is not only delicious but also satisfying. Plus, this recipe is simple and requires easily available ingredients!

How to Make Best French Onion Soup

Ingredients

  • 4 large onions, thinly sliced
  • 4 tablespoons butter
  • 1 tablespoon olive oil
  • 1 teaspoon sugar
  • 4 cups beef broth
  • 1 cup dry white wine
  • 2 cloves garlic, minced
  • 1 bay leaf
  • 1 teaspoon fresh thyme leaves
  • Salt and pepper to taste
  • Baguette or crusty bread, sliced
  • 2 cups shredded Gruyère cheese

Directions

  1. In a large pot, melt the butter and olive oil over medium heat. Add the sliced onions and sugar, cooking until they are caramelized and golden brown, about 30-40 minutes. Stir occasionally.
  2. Add the minced garlic and cook for another minute.
  3. Pour in the white wine, scraping the bottom of the pot to deglaze. Let it cook down for 5 minutes.
  4. Add the beef broth, bay leaf, thyme, salt, and pepper. Bring to a boil, then reduce heat and let simmer for 20-30 minutes.
  5. Preheat the oven to 350°F (175°C).
  6. Ladle the soup into oven-safe bowls. Place a slice of baguette on top and sprinkle with Gruyère cheese.
  7. Place the bowls on a baking sheet and bake until the cheese is bubbly and golden, about 10-15 minutes.
  8. Serve hot and enjoy!

How to Serve Best French Onion Soup

Serve the soup in warm bowls with a slice of toasted baguette on top. The melted Gruyère cheese should be bubbly and golden. For added flavor, consider garnishing with a sprinkle of fresh thyme or parsley.

How to Store Best French Onion Soup

Store any leftover soup in an airtight container in the refrigerator for up to 3 days. If you want to save the soup for longer, you can freeze it without the bread and cheese for up to 2 months.

Tips to Make Best French Onion Soup

  • Take your time to caramelize the onions. This step enhances the soup’s flavor.
  • Use good quality beef broth for a richer taste.
  • If you don’t have Gruyère cheese, you can use Swiss or mozzarella as alternatives.
  • Adjust the sugar according to your taste to balance the flavors.

Variation

You can add a splash of sherry for an extra depth of flavor. If you prefer a vegetarian version, simply replace the beef broth with vegetable broth.

FAQs

  • Can I make this soup in advance?
    Yes, you can prepare the soup a day ahead. Just reheat it before serving.

  • Can I use yellow onions instead of sweet onions?
    Yes, yellow onions will work well, but sweet onions will give a richer, sweeter flavor.

  • What other cheeses can I use?
    Besides Gruyère, you can also use Fontina, Mozzarella, or a mix of cheeses for a unique taste.

French Onion Soup

A comforting soup filled with rich flavors, sweet caramelized onions, and topped with gooey melted cheese, perfect for any time of the year.
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Prep Time 10 minutes
Cook Time 1 hour
Total Time 1 hour 10 minutes
Course Appetizer, Soup
Cuisine French
Servings 6 servings
Calories 450 kcal

Ingredients
  

For the Soup

  • 4 large large onions, thinly sliced
  • 4 tablespoons butter unsalted
  • 1 tablespoon olive oil
  • 1 teaspoon sugar to enhance caramelization
  • 4 cups beef broth good quality
  • 1 cup dry white wine
  • 2 cloves garlic, minced
  • 1 leaf bay leaf
  • 1 teaspoon fresh thyme leaves
  • to taste salt and pepper
  • slices Baguette or crusty bread, sliced for serving
  • 2 cups shredded Gruyère cheese or alternative cheese

Instructions
 

Preparation

  • In a large pot, melt the butter and olive oil over medium heat.
  • Add the sliced onions and sugar, cooking until they are caramelized and golden brown, about 30-40 minutes, stirring occasionally.
  • Add the minced garlic and cook for another minute.
  • Pour in the white wine, scraping the bottom of the pot to deglaze. Let it cook down for 5 minutes.
  • Add the beef broth, bay leaf, thyme, salt, and pepper. Bring to a boil, then reduce heat and let simmer for 20-30 minutes.

Baking

  • Preheat the oven to 350°F (175°C).
  • Ladle the soup into oven-safe bowls. Place a slice of baguette on top and sprinkle with Gruyère cheese.
  • Place the bowls on a baking sheet and bake until the cheese is bubbly and golden, about 10-15 minutes.

Serving

  • Serve hot and enjoy!

Notes

Take your time to caramelize the onions for enhanced flavor. Store any leftover soup in an airtight container in the refrigerator for up to 3 days or freeze it without the bread and cheese for up to 2 months.

Nutrition

Serving: 1gCalories: 450kcalCarbohydrates: 35gProtein: 15gFat: 30gSaturated Fat: 15gSodium: 800mgFiber: 2gSugar: 5g
Keyword Caramelized Onions, Cheesy Soup, comfort food, French onion soup
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