Easy French Onion Soup

French Onion Soup is a timeless classic that combines caramelized onions with a savory beef broth, topped with crusty bread and melted cheese. This comforting dish is perfect for chilly nights or whenever you crave something hearty and flavorful.

Why You’ll Love This Recipe

  • Rich Flavor: The slow caramelization of onions creates a deep, sweet, and savory flavor that’s irresistible.
  • Simple Ingredients: You don’t need a long list of fancy items; this soup is made with pantry staples.
  • Crowd-Pleaser: Whether it’s a family dinner or a dinner party, this soup is a guaranteed hit.
  • Customizable: You can adjust the toppings and use your favorite type of cheese or bread.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

  • Onions (yellow, white, or sweet)
  • Unsalted butter
  • Olive oil
  • Beef broth (or a combination of beef and chicken broth for a milder flavor)
  • Dry white wine (optional)
  • Bay leaves
  • Thyme (fresh or dried)
  • Salt and pepper
  • Baguette or crusty bread
  • Gruyère cheese (or Swiss cheese as an alternative)

Directions

  1. Caramelize the Onions: In a large pot, heat butter and olive oil over medium heat. Add sliced onions and cook slowly, stirring often, until they turn a deep golden brown. This may take about 40-50 minutes.
  2. Deglaze the Pot: Add the wine (if using) to the pot to deglaze, scraping up any browned bits from the bottom.
  3. Simmer the Broth: Stir in the beef broth, bay leaves, thyme, salt, and pepper. Bring the mixture to a boil, then reduce to a simmer. Let it cook for 30-40 minutes to develop the flavors.
  4. Prepare the Bread: While the soup is simmering, slice your bread and toast it until golden.
  5. Assemble and Broil: Ladle the soup into oven-safe bowls, top with toasted bread slices, and generously sprinkle with grated Gruyère cheese. Place the bowls under the broiler until the cheese is melted and bubbly.
  6. Serve: Carefully remove the bowls from the oven and serve immediately.

Servings and Timing

  • Servings: This recipe serves 4-6 people.
  • Prep Time: 15 minutes
  • Cook Time: 1 hour 30 minutes
  • Total Time: 1 hour 45 minutes

Variations

  • Vegetarian: Swap the beef broth for vegetable broth and add a splash of soy sauce for depth.
  • Cheese Options: While Gruyère is traditional, feel free to use mozzarella, fontina, or a mix of cheeses.
  • Gluten-Free: Use gluten-free bread and ensure your broth is gluten-free.
  • Add Protein: Include shredded chicken or diced sausage for a more filling meal.

Storage/Reheating

  • Storage: Let the soup cool completely, then store it in an airtight container in the refrigerator for up to 4 days.
  • Freezing: Freeze the soup (without bread and cheese) in airtight containers for up to 3 months. Thaw in the refrigerator before reheating.
  • Reheating: Warm the soup on the stovetop over medium heat until heated through. Add the bread and cheese topping just before serving.

FAQs

1. Can I make French Onion Soup without wine?

Yes, you can replace the wine with an equal amount of beef broth or water.

2. What’s the best onion to use for this soup?

Yellow onions are the most commonly used, but sweet onions work well for a milder flavor.

3. Can I make this soup in advance?

Absolutely! The soup tastes even better the next day as the flavors develop. Just add the bread and cheese before serving.

4. What if I don’t have oven-safe bowls?

You can broil the cheese-topped bread separately on a baking sheet and place it on top of the soup before serving.

5. How do I avoid burning the onions while caramelizing?

Cook them on medium or medium-low heat and stir frequently to prevent sticking.

6. Can I use pre-shredded cheese?

Yes, but freshly grated cheese melts better and gives a smoother texture.

7. What’s the difference between French Onion Soup and regular onion soup?

French Onion Soup is traditionally made with caramelized onions, beef broth, and topped with bread and cheese, while regular onion soup can vary in preparation and toppings.

8. Can I use chicken broth instead of beef broth?

Yes, chicken broth can be used, though the flavor will be lighter and less robust.

9. How do I make the soup thicker?

You can stir in a small amount of cornstarch mixed with water or use less broth for a thicker consistency.

10. Can I add mushrooms or other vegetables?

Yes, mushrooms, leeks, or even carrots can be added for additional flavor and texture.

Conclusion

Easy French Onion Soup is a heartwarming dish that’s as comforting as it is delicious. With its caramelized onions, savory broth, and cheesy topping, this recipe is perfect for any occasion. Whether you’re cooking for yourself or hosting guests, this soup will impress everyone at the table. Give it a try and savor the magic of this classic French dish!

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Easy French Onion Soup

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  • Author: clara
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 10 minutes
  • Yield: 4 servings 1x
  • Category: Appetizer, Main Course
  • Method: Stovetop, Broiler
  • Cuisine: French

Description

French Onion Soup is a comforting and flavorful dish made with caramelized onions, rich broth, and a golden, cheesy topping. This easy recipe simplifies the process without sacrificing the deep, savory flavors that make this soup a classic. Perfect for a cozy dinner or an impressive starter.


Ingredients

Units Scale

For the Soup:

  • 4 large yellow onions, thinly sliced
  • 3 tbsp unsalted butter
  • 1 tbsp olive oil
  • 1 tsp sugar
  • 1 tsp salt
  • 2 cloves garlic, minced
  • 4 cups beef broth (or chicken broth for a lighter flavor)
  • 2 cups water
  • 1/2 cup dry white wine (optional)
  • 2 sprigs of fresh thyme (or 1/2 tsp dried thyme)
  • 1 bay leaf
  • Salt and pepper to taste

For the Topping:

  • 46 slices of baguette, toasted
  • 1 cup shredded Gruyère cheese (or a mix of Gruyère and Swiss)

Instructions

Caramelize the Onions:

  1. Heat butter and olive oil in a large pot or Dutch oven over medium heat.
  2. Add the sliced onions, sugar, and salt. Cook for 25–30 minutes, stirring occasionally, until the onions are deeply golden and caramelized. Reduce heat if necessary to prevent burning.
  3. Stir in the garlic and cook for another 1–2 minutes until fragrant.

Make the Soup Base:

  1. Add the white wine (if using) to deglaze the pot, scraping up any browned bits. Simmer for 2–3 minutes until slightly reduced.
  2. Pour in the beef broth, water, thyme, and bay leaf. Bring to a boil, then reduce to a simmer.
  3. Simmer the soup for 20–25 minutes to allow the flavors to meld. Remove the thyme sprigs and bay leaf before serving. Adjust seasoning with salt and pepper.

Prepare the Topping:

  1. Preheat your broiler to high. Ladle the soup into oven-safe bowls or ramekins.
  2. Top each bowl with a toasted baguette slice and a generous handful of Gruyère cheese.
  3. Place the bowls on a baking sheet and broil for 2–3 minutes, or until the cheese is melted and bubbly.

Serve:

  1. Serve the soup immediately, garnished with fresh thyme if desired.



Notes

  • For a vegetarian version, use vegetable broth instead of beef broth.
  • If you don’t have Gruyère, use mozzarella, provolone, or any melty cheese.
  • Toast the baguette slices beforehand to prevent them from becoming too soggy.

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