French Pearl Onion Soup with Gruyere and Baguette Recipe
This French Pearl Onion Soup is a rich and flavorful twist on the classic French onion soup. Made with sweet Vidalia onions, a blend of beef and chicken broth, and topped with toasted French baguette slices smothered in melted Gruyere cheese, this comforting soup is perfect for chilly days or elegant dinners.
- Prep Time: 20 minutes
- Cook Time: 1 hour 15 minutes
- Total Time: 1 hour 35 minutes
- Yield: 6 servings
- Category: Soup
- Method: Stovetop
- Cuisine: French
Ingredients
Soup Ingredients
- 5 large Vidalia (or sweet) onions, thinly sliced
- 3 Tablespoons butter
- 2 Tablespoons olive oil
- 1 Tablespoon flour
- ⅓ cup dry white or red wine
- 32 ounces beef broth or stock
- 24 ounces chicken broth
- Salt and pepper, to taste
- 1 Tablespoon fresh thyme, or 1/2 teaspoon dried thyme
- 1-2 bay leaves
Topping Ingredients
- 8 slices French baguette
- 1 Tablespoon olive oil, for bread
- 1 ½ cups Gruyere cheese, grated
Instructions
- Prepare the onions: Peel and thinly slice the Vidalia onions into rings or half-moons for a tender and flavorful base.
- Sauté the onions: In a large saucepan or Dutch oven, heat butter and olive oil over medium heat. Add the sliced onions and cook, stirring frequently, until they are soft and caramelized, about 25-30 minutes, without allowing them to burn.
- Add flour and wine: Sprinkle the flour over the caramelized onions and stir well to coat. Cook for 1-2 minutes to remove the raw flour taste, then pour in the dry white or red wine, scraping the bottom of the pot to deglaze and incorporate all flavorful bits.
- Add broths and seasoning: Pour in the beef and chicken broths, then add the fresh thyme and bay leaves. Season with salt and pepper according to taste. Bring the soup to a gentle boil, then reduce to low heat and simmer uncovered for about 30-40 minutes to meld flavors.
- Prepare the bread topping: While the soup simmers, preheat the oven to 375°F (190°C). Brush French baguette slices lightly with olive oil and toast them in the oven until golden, about 8-10 minutes.
- Assemble and serve: Remove bay leaves and thyme sprigs from the soup. Ladle the soup into oven-safe bowls, place toasted baguette slices on top, and generously sprinkle with grated Gruyere cheese. Place the bowls under the oven broiler for 2-4 minutes or until the cheese is bubbly and golden. Carefully remove and serve immediately.
Notes
- For a vegetarian version, substitute vegetable broth for the beef and chicken broth, and use a vegetarian cheese option.
- Caramelizing onions properly is key for a deep flavor, so be patient and avoid cooking on high heat.
- If Gruyere cheese is unavailable, Swiss or Emmental cheese can be a good substitute.
- This soup can be prepared in advance; reheat gently on stovetop and broil cheese topping just before serving.
