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Classic French Onion Soup Recipe

Are you ready to transport your taste buds to the streets of Paris with one bowl of soup? Look no further than our classic French onion soup recipe.
Prep Time 35 minutes
Cook Time 20 minutes
Course Soup
Cuisine French
Servings 8
Calories 457 kcal

Ingredients
  

  • 1 tablespoon olive oil
  • 3 pounds onions * approx. About 5 to 6 medium onions
  • 2 tablespoons light brown sugar
  • 1 1/2 teaspoons Worcestershire Sauce
  • 2 cloves garlic minced
  • Optional: 1 tablespoon butter
  • 2 tablespoons allpurpose flour optional
  • Optional: 1 cup wine sherry or marsala are all good options,
  • 8 cups beef stock 8 cups chicken or vegetable stock can also be used
  • 1 small bouquet of fresh thyme
  • 1 bay leaf
  • 1 tablespoon kosher Salt or to your taste
  • 1/4 teaspoon black pepper
  • 16 slices of crusty French bread toasted
  • 1 cup shredded Gruyere Cheese
  • 1 cup shredded mozzarella cheese

Instructions
 

  • Over medium heat, heat the olive oil in large heavy-bottomed saucepan.
  • Peel, halve and thinly slice the onions. Then add them to the pot with a stir.
  • Continue to stir the brown sugar and Worcestershire Sauce until the onions turn a deep golden color.
  • Mix in the garlic and cook until fragrant.
  • Mix the butter and flour in a saucepan. Stir everything together.
  • Stir in the wine.
  • Add the stock to the soup, then add the herbs. Let the soup simmer for a while.
  • Season with salt & pepper
  • Take out the bay leaf and thyme stems. Ladle the soup in heat-safe bowls or slow cookers. Top with cheese and toasted bread.
  • Place the cheese under the broiler until it is browned and bubbly.