Mosterdsoep (Dutch Mustard Soup)
Soups 🇳🇱 Dutch

Mosterdsoep (Dutch Mustard Soup)

A silky leek and mustard soup from the north of the Netherlands, topped with crisp bacon.

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  • Time40 min
  • LevelEasy
  • Costabout £1.25 a head

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

Estimated nutrition per serving

  • 576kcal
  • 19.1gcarbs
  • 7gof which sugars
  • 53.5gfat
  • 24.3gsaturates
  • 6.5gprotein
  • 2.7gfibre
  • 2.9gsalt

A rough estimate worked out from the ingredients, for the serving size above. It is a guide only and not medical advice. If you count carbs or manage diabetes, check with your own tools and your care team.

4 servings

Ingredients

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Method

  1. 1

    Melt the butter in a large pan and cook the onion and leeks over a low heat for 10 minutes, until very soft.

    10 min
  2. 2

    Stir in the flour and cook for 1 minute, then add the stock a little at a time, stirring.

  3. 3

    Simmer for 15 minutes, until the leeks are completely tender.

    15 min
  4. 4

    Meanwhile, fry the bacon in a dry frying pan for 6 minutes, until crisp.

    6 min
  5. 5

    Blend the soup until smooth. Stir in the mustard and cream, then warm through without boiling.

  6. 6

    Taste and add more mustard if you like. Ladle into bowls and top with the bacon and chives.

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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