Classic Soupe À L’Oignon: A Hearty French Onion Soup

French Onion Soup, or Soupe À L’Oignon, is a beloved classic in French cuisine known for its rich, caramelized onions and savory broth. The deep flavors of slowly cooked onions, combined with white wine and a touch of beef bouillon, create a comforting and hearty soup perfect for cold days. Topped with a golden, cheesy baguette, this French onion soup is a perfect appetizer or even a satisfying meal on its own. Let’s dive into how to create this iconic dish that never fails to warm the soul.

Ingredients:

For the Onions:

  • 3 large white onions, halved and thinly slice
  • 2 large red onions, cut in half and sliced thinly

For Cooking:

  • 2 tablespoons olive oil
  • 2 tablespoons butter
  • 5 tablespoons flour

For the Liquid:

  • 3 cups (24 oz, 750 ml) white wine
  • 2 cups (16 oz, 500 ml) water
  • 5 tablespoons beef bouillon

For Serving:

  • 8 – 12 thick slices of baguette
  • 1 1/3 cups (5 oz, 150 g) shredded Gruyère cheese
  • 1 cup (4 oz, 120 g) of shredded Parmesan cheese

Instructions:

  1. Caramelize the Onions:
    • In a large, heavy-bottomed pot, heat the olive oil and butter over medium heat until the butter is melted and begins to bubble.
    • Add the sliced white and red onions to the pot, stirring to coat them in the oil and butter.
    • Reduce the heat to medium-low and cook the onions slowly, stirring occasionally, for about 25-30 minutes or until they become golden brown and caramelized.
    • Take care not to burn the onions, adjusting the heat as necessary.
  2. Thicken with Flour:
    • Once the onions are caramelized and soft, sprinkle the flour over them and stir to combine.
    • Cook the flour for about 2-3 minutes to remove its raw taste, stirring constantly to prevent it from sticking to the bottom of the pot.
  3. Add the Liquid:
    • Slowly pour in the white wine, stirring to deglaze the pan and scrape up any bits stuck to the bottom.
    • Let the wine simmer for about 5 minutes to cook off some of the alcohol.
    • Add the water and beef bouillon, stirring to dissolve the bouillon.
    • Bring the soup to a simmer and let it cook for 15-20 minutes, allowing the flavors to meld together.
  4. Prepare the Baguette:
    • While the soup simmers, preheat your oven’s broiler.
    • Lay the baguette slices on a baking sheet and toast them under the broiler for about 2-3 minutes on each side, until golden brown.
  5. Assemble and Broil the Soup:
    • Preheat your oven to broil.
    • Ladle the hot soup into oven-safe bowls.
    • Place one or two slices of toasted baguette on top of each bowl of soup, ensuring it covers most of the surface.
    • Generously sprinkle the shredded Gruyère and grated Parmesan cheeses over the baguette slices.
    • Place the bowls under the broiler for 3-4 minutes or until the cheese is melted, bubbly, and golden brown.
  6. Serve:
    • Carefully remove the bowls from the oven (they will be hot!).
    • Serve the soup immediately, garnished with a bit more cheese if desired.
    • This French onion soup pairs beautifully with a light salad or crusty bread on the side.

Conclusion:

Soupe À L’Oignon is a rich, savory dish that brings together caramelized onions, white wine, and beef bouillon to create a deeply flavorful broth. The cheesy baguette on top adds the perfect finishing touch, offering a delightful contrast of textures. Whether as a starter for a French-themed dinner or as a cozy main course on its own, this French Onion Soup recipe is a timeless dish that never disappoints.

Classic Soupe À L’Oignon: A Hearty French Onion Soup

A classic French Onion Soup with caramelized whiteand red onions simmered in a flavorful broth of white wine and beef bouillon,topped with a crusty baguette and melted Gruyère and Parmesan cheeses.
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Course Main Course, Soup
Cuisine French
Servings 6
Calories 400 kcal

Ingredients
  

For the Onions:

  • 3 large white onions halved and thinly slice
  • 2 large red onions cut in half and sliced thinly

For Cooking:

  • 2 tablespoons olive oil
  • 2 tablespoons butter
  • 5 tablespoons flour

For the Liquid:

  • 3 cups 24 oz, 750 ml white wine
  • 2 cups 16 oz, 500 ml water
  • 5 tablespoons beef bouillon

For Serving:

  • 8 – 12 thick slices of baguette
  • 1 1/3 cups 5 oz, 150 g shredded Gruyère cheese
  • 1 cup 4 oz, 120 g of shredded Parmesan cheese

Instructions
 

Caramelize the Onions:

  • In a large, heavy-bottomed pot, heat the olive oil and butter over medium heat until the butter is melted and begins to bubble.
  • Add the sliced white and red onions to the pot, stirring to coat them in the oil and butter.
  • Reduce the heat to medium-low and cook the onions slowly, stirring occasionally, for about 25-30 minutes or until they become golden brown and caramelized.
  • Take care not to burn the onions, adjusting the heat as necessary.

Thicken with Flour:

  • Once the onions are caramelized and soft, sprinkle the flour over them and stir to combine.
  • Cook the flour for about 2-3 minutes to remove its raw taste, stirring constantly to prevent it from sticking to the bottom of the pot.

Add the Liquid:

  • Slowly pour in the white wine, stirring to deglaze the pan and scrape up any bits stuck to the bottom.
  • Let the wine simmer for about 5 minutes to cook off some of the alcohol.
  • Add the water and beef bouillon, stirring to dissolve the bouillon.
  • Bring the soup to a simmer and let it cook for 15-20 minutes, allowing the flavors to meld together.

Prepare the Baguette:

  • While the soup simmers, preheat your oven’s broiler.
  • Lay the baguette slices on a baking sheet and toast them under the broiler for about 2-3 minutes on each side, until golden brown.

Assemble and Broil the Soup:

  • Preheat your oven to broil.
  • Ladle the hot soup into oven-safe bowls.
  • Place one or two slices of toasted baguette on top of each bowl of soup, ensuring it covers most of the surface.
  • Generously sprinkle the shredded Gruyère and grated Parmesan cheeses over the baguette slices.
  • Place the bowls under the broiler for 3-4 minutes or until the cheese is melted, bubbly, and golden brown.

Serve:

  • Carefully remove the bowls from the oven (they will be hot!).
  • Serve the soup immediately, garnished with a bit more cheese if desired.
  • This French onion soup pairs beautifully with a light salad or crusty bread on the side.
Keyword French onion soup

Leave a Comment

Recipe Rating