French Onion Soup
Slow-caramelised onions in a rich beef broth, topped with a toasted crouton and a golden, bubbling gruyère crust.
Cuisines
French
Best for
Lunch
Dinner
Recipe
Prep: 15 min
Cook: 55 min
Total: 70 min
2-3 servings
Ingredients
| 3 tablespoons | unsalted butter |
| 1 tablespoon | olive oil |
| 3 large | yellow onions, thinly sliced |
| 1 teaspoon | sugar |
| 1 teaspoon | salt |
| 1/2 teaspoon | black pepper |
| 2 tablespoons | all-purpose flour |
| 4 cups | beef stock |
| 1/2 cup | dry white wine |
| 1 teaspoon | fresh thyme leaves |
| 1 cup | grated Gruyère cheese |
Instructions
- 1 Melt the butter with the olive oil in a large pot over medium heat.
- 2 Add the sliced onions and cook, stirring frequently, until they are soft and caramelized, about 25 minutes.
- 3 Sprinkle the sugar, salt, and pepper over the onions and continue to cook for another 5 minutes.
- 4 Stir in the flour and cook for 2 minutes to remove the raw flour taste.
- 5 Gradually add the beef stock and white wine, stirring constantly to prevent lumps.
- 6 Add the thyme and bring the soup to a simmer. Cook for 20 minutes, allowing the flavors to meld.
- 7 Preheat the oven broiler. Place the baguette slices on a baking sheet and toast under the broiler until golden brown.
- 8 Ladle the soup into ovenproof bowls, place a toasted baguette slice on top of each, and sprinkle generously with Gruyère cheese.
- 9 Place the bowls under the broiler until the cheese is bubbly and golden brown, about 3-5 minutes.
Tips
For a richer flavor, use a mix of beef and chicken stock.