Description
A classic and comforting soup with caramelized onions, rich beef broth, and melted cheese-topped bread. Perfect for a cozy dinner or an elegant starter.
Ingredients
Scale
- 3 tbsp unsalted butter
- 4 large yellow onions, thinly sliced
- 1 tsp sugar
- 2 garlic cloves, minced
- 2 tbsp all-purpose flour
- 6 cups beef broth (or a mix of beef and chicken broth)
- ½ cup dry white wine (optional)
- 1 tsp fresh thyme leaves (or ½ tsp dried thyme)
- Salt and black pepper to taste
- 4 slices of French bread or baguette
- 1 cup grated Gruyère cheese (or Swiss cheese)
Instructions
- Caramelize Onions: In a large pot, melt butter over medium heat. Add onions and sugar, stirring occasionally. Cook for 25-30 minutes until onions are golden brown and caramelized.
- Add Garlic and Flour: Stir in minced garlic and cook for 1 minute. Sprinkle flour over the onions and stir well. Cook for another 2 minutes.
- Simmer Soup: Gradually stir in beef broth and wine (if using). Add thyme, salt, and pepper. Bring to a boil, then reduce heat and simmer for 20 minutes.
- Prepare Bread: While the soup simmers, preheat the oven to 400°F (200°C). Place bread slices on a baking sheet and toast for 5 minutes. Remove from oven and top each slice with grated cheese. Return to the oven and broil until cheese is melted and bubbly.
- Assemble and Serve: Ladle soup into bowls, place a cheese-topped bread slice on each, and serve hot.
Notes
- For a vegetarian version, substitute beef broth with vegetable broth.
- Add a splash of balsamic vinegar for extra depth of flavor.
- Leftovers can be refrigerated for up to 3 days or frozen (without bread) for up to 1 month.
- Prep Time: 15 minutes
- Cook Time: 1 hour
Nutrition
- Calories: 350
- Sugar: 9g
- Fat: 18g
- Carbohydrates: 30g
- Fiber: 3g
- Protein: 12g