Soups 🇫🇷 French

Proper French onion soup with cheese croutons

Onions cooked slowly until jammy, in a rich beef broth, under a bubbling cheese crouton.

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  • Time1 hr 30
  • LevelMedium
  • Costabout £3.61 a head

Cost is worked out from Aldi and Tesco shelf prices in October 2026. Your shop and brands will differ.

4 servings

Ingredients

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Method

  1. 1

    Melt the butter with the oil in a large pan. Add the onions and cook on a low heat for 45 minutes, stirring now and then, until deep golden brown.

    45 min
  2. 2

    Stir in the garlic and flour for 1 minute.

    1 min
  3. 3

    Add the wine and let it bubble until almost gone. Add the stock and thyme.

  4. 4

    Simmer for 20 minutes. Season well with black pepper.

    20 min
  5. 5

    Heat the grill to high. Toast the bread on both sides.

  6. 6

    Ladle the soup into ovenproof bowls. Float a slice of toast on top and cover with cheese.

  7. 7

    Grill for 3 minutes until melted and bubbling.

    3 min

Double check before you cook. Recipes can contain mistakes. Any diet labels come from the ingredients as written in this recipe and are a guide, not a guarantee. Always check every ingredient and the packet label for allergens and cross contamination, and ask your doctor or dietitian what is right for you, especially with coeliac disease, diabetes or a serious allergy. This is not medical advice.

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