Description
A rich and savory French onion soup topped with melted Gruyère cheese croutons.
Ingredients
Scale
- 4 large yellow onions, thinly sliced
- 4 tbsp unsalted butter
- 1 tbsp olive oil
- 1 tsp sugar
- 1 tsp salt
- 4 cups beef broth
- 2 cups chicken broth
- 1/2 cup dry white wine
- 1 tbsp all-purpose flour
- 1 bay leaf
- 1/2 tsp thyme
- 4 slices French bread, toasted
- 1 1/2 cups shredded Gruyère cheese
Instructions
- Melt butter with olive oil in a large pot over medium heat.
- Add onions, sugar, and salt. Cook until caramelized, about 30 minutes.
- Sprinkle flour over onions and stir for 1 minute.
- Pour in wine, beef broth, chicken broth, bay leaf, and thyme. Simmer for 30 minutes.
- Preheat oven broiler. Ladle soup into oven-safe bowls.
- Top each bowl with a toasted bread slice and shredded Gruyère.
- Broil until cheese is bubbly and golden, about 2-3 minutes.
- Serve immediately.
Notes
- Slice onions thinly for even caramelization.
- Use dry white wine for a balanced flavor.
- Gruyère melts well but can be substituted with Swiss cheese.
- Broil just before serving to keep croutons crisp.
- Prep Time: 15 mins
- Cook Time: 65 mins
- Category: Soup
- Method: Stovetop, Broiling
- Cuisine: French
Nutrition
- Serving Size: 1 bowl
- Calories: 420
- Sugar: 8g
- Sodium: 1200mg
- Fat: 22g
- Saturated Fat: 12g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 4g
- Protein: 18g
- Cholesterol: 55mg