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Onion Soup with Cheese and Croutons recipe icon

Onion Soup with Cheese and Croutons

A classic French soup with caramelized onions, aromatic broth, and crispy croutons topped with melted cheese. A rich, warming dish with deep, complex flavors.

Total
90 min
Standard serving
850.1 g

Ingredients

Total 12

Instructions

  1. 1

    Step 1

    Peel the onion and cut it into large pieces. Put butter in a large pot with a thick bottom, place it over medium heat. When the butter melts, add olive oil and stir.

  2. 2

    Step 2

    Place the sliced onion, whole peeled garlic cloves, and thyme sprigs in a pot. Season with salt and a pinch of chili pepper, stir well. Cook uncovered over medium heat for 30 minutes, stirring occasionally, until the onion becomes soft and golden.

  3. 3

    Step 3

    Add sugar and pour in white wine. Cook until the alcohol smell disappears. Sprinkle flour, stir and cook for another 5 minutes.

    Pour in the hot chicken broth, bring to a boil. Reduce heat to low and simmer for 30–40 minutes, skimming off the foam as it forms.

  4. 4

    Step 4

    Remove the thyme sprigs from the soup. Season the soup to taste with black pepper. Preheat the oven to 180 °C.

    Slice the baguette, arrange on a baking sheet and dry in the oven for 7 minutes until golden brown. Rub the croutons with garlic on both sides.

  5. 5

    Step 5

    Pour the soup into a soup bowl, place a crouton on the surface, and sprinkle with grated Gruyère cheese. Put the bowl in a preheated 200 °C oven or under the grill for 2–3 minutes until the cheese melts. Serve immediately.

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