French Onion Soup

Ingredients 

  • 6 large white onions, thinly sliced
  • 4 tablespoons unsalted butter
  • 2 tablespoons olive oil
  • 1 teaspoon sugar
  • 1 teaspoon salt
  • 8 cups beef broth
  • 1/2 cup dry white wine (optional)
  • 2 tablespoons all-purpose flour
  • 2 cloves garlic, minced
  • 1 bay leaf
  • 1/2 teaspoon dried thyme
  • Salt and pepper to taste
  • 1 baguette, sliced
  • 2 cups grated cheese
Serves 4-6
Serves 4-6
Cooking time 1hr 25 minutes
Cooking time 1hr 25 minutes
Prep time: 15 minutes
Prep time: 15 minutes

Method

  1. Caramelise the Onions:

    • In a large heavy-bottomed pot, melt the butter and olive oil over medium heat.
    • Add the sliced onions, sugar, and 1 teaspoon of salt. Cook, stirring occasionally, until the onions are deep golden brown and caramelized. This will take about 30-40 minutes. Be patient and stir frequently to prevent burning.
  2. Add Garlic and Flour:

    • Add the minced garlic to the caramelized onions and cook for about 1 minute until fragrant.
    • Sprinkle the flour over the onions and stir well to combine. Cook for another 2-3 minutes to get rid of the raw flour taste.
  3. Deglaze and Simmer:

    • If using, add the white wine to deglaze the pot, scraping up any browned bits from the bottom. Let it cook for about 2 minutes.
    • Add the beef broth, bay leaf, and thyme. Bring the soup to a boil, then reduce the heat and let it simmer for about 30 minutes. Season with salt and pepper to taste.
  4. Prepare the Bread:

    • While the soup is simmering, preheat your oven to 350°F (175°C).
    • Place the baguette slices on a baking sheet and bake them for about 10 minutes until they are dry and lightly browned.
    • Remove the baking sheet from the oven and set aside.
  5. Assemble and Serve:

    • Preheat your broiler.
    • Ladle the hot soup into oven-safe bowls. Place a slice or two of the toasted baguette on top of each bowl of soup.
    • Sprinkle a generous amount of grated cheese over the bread and soup.
    • Place the bowls on a baking sheet and broil in the oven until the cheese is melted, bubbly, and golden brown, about 3-5 minutes.
    • Carefully remove the baking sheet from the oven. Let the soup cool slightly before serving.

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