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Heartwarming French Onion Soup Recipe

Heartwarming French Onion Soup Recipe


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4.6 from 20 reviews

  • Total Time: 80-90 minutes
  • Yield: 4 1x

Description

Savory French Onion Soup elevates classic comfort with caramelized onions and rich beef broth. Topped with crusty bread and melted gruyère cheese, this elegant French dish promises a luxurious culinary experience you’ll crave on chilly evenings.


Ingredients

Scale

Main Ingredients:

  • 4 large onions
  • 2 tbsp butter
  • 2 tbsp olive oil
  • 1 L beef broth
  • 500 ml water

Bread and Cheese:

  • 4 slices french baguette
  • 2 cups gruyère cheese
  • 1/2 cup parmesan cheese

Seasonings:

  • 2 cloves garlic
  • 1 tsp dried thyme
  • 1 bay leaf
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 2 tbsp dry white wine

Instructions

  1. Peel and thinly slice onions into uniform half-moon shapes, ensuring consistent thickness for even caramelization.
  2. Heat butter and olive oil in a large heavy-bottomed pot over medium-low heat, creating a rich cooking base.
  3. Add sliced onions to the pot, stirring continuously to coat with fat and prevent immediate browning.
  4. Slowly caramelize onions for 40-45 minutes, stirring periodically, until they transform into a deep golden-brown color with rich, sweet flavor.
  5. Mince garlic and add to the caramelized onions, sautéing for an additional 1-2 minutes to release aromatic oils.
  6. Deglaze the pot with dry white wine, scraping accumulated browned bits from the bottom to intensify flavor profile.
  7. Pour in beef broth and water, then introduce dried thyme, bay leaf, salt, and black pepper.
  8. Simmer the soup on low heat for 25-30 minutes, allowing flavors to meld and develop complexity.
  9. Preheat oven broiler to high temperature while soup simmers.
  10. Toast french baguette slices until golden and crisp around edges.
  11. Ladle hot soup into oven-safe ceramic bowls, floating toasted baguette on top.
  12. Generously sprinkle gruyère and parmesan cheese over bread, covering entire surface.
  13. Broil for 3-4 minutes until cheese melts completely and develops golden-brown bubbling crust.
  14. Remove from broiler, let cool for 2-3 minutes, and serve immediately.

Notes

  • Always slice onions uniformly to ensure consistent caramelization and prevent uneven cooking.
  • Use a combination of butter and olive oil for deeper flavor and prevent butter from burning during long cooking process.
  • Patience is key when caramelizing onions – low and slow develops rich, sweet flavor without burning.
  • Deglaze with dry white wine to enhance depth and remove delicious browned bits stuck to pot bottom.
  • Select high-quality gruyère cheese for authentic, creamy melting texture that complements soup’s richness.
  • Create gluten-free version by using gluten-free bread and checking broth ingredients.
  • Vegetarian adaptation works by substituting beef broth with robust mushroom or vegetable stock.
  • Make ahead and refrigerate soup base for up to 3 days, adding fresh cheese toast just before serving.
  • Prep Time: 10 minutes
  • Cook Time: 70-80 minutes
  • Category: Dinner, Appetizer
  • Method: Simmering
  • Cuisine: French

Nutrition

  • Serving Size: 4
  • Calories: 360
  • Sugar: 5 g
  • Sodium: 800 mg
  • Fat: 20 g
  • Saturated Fat: 10 g
  • Unsaturated Fat: 8 g
  • Trans Fat: 0 g
  • Carbohydrates: 30 g
  • Fiber: 2 g
  • Protein: 12 g
  • Cholesterol: 40 mg