Soupe à l’Oignon Gratinée (French Onion Soup)

Ingredients

Check you have the quantities below.

• 5 large yellow onions, thinly sliced
• 3 tbsp butter
• 1 tbsp olive oil
• 1 tsp salt
• 1 tsp sugar
• 2 cloves garlic, minced
• 1 tbsp all-purpose flour
• 6 cups / 1.4 L vegetable broth
• 1 bay leaf
• 1 tsp thyme
• 6 baguette slices
• 1 1/2 cups / 150 g Gruyère cheese, grated

Let’s make it

1. Cook onions with butter, oil, salt, and sugar over medium-low heat, stirring often, until deep golden brown, 30 to 35 minutes.
2. Stir in garlic and flour for 1 minute, then add broth, bay leaf, and thyme. Simmer 20 minutes.
3. Heat the broiler. Ladle soup into oven-safe bowls, top with baguette slices and Gruyère.
4. Broil 2 to 4 minutes until the cheese is bubbling and browned. Remove the bay leaf before serving.