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Pickled mustard seeds recipe for a tangy homemade condiment

Pickled mustard seeds are a delightful vegan condiment that add a burst of tangy flavour and a satisfying crunch to a variety of dishes. These tiny seeds, soaked in champagne vinegar with a hint of sweetness from caster sugar and balanced by sea salt, transform into a versatile topping that enhances everything from salads to grilled vegetables, making them a fantastic addition to any pantry.

Ideal for those looking to elevate their meals with homemade touches, this quick and easy recipe is perfect for impressing guests at a dinner party or simply brightening up a weekday lunch. Serve these pickled mustard seeds alongside cheese and charcuterie boards, or use them to garnish your favourite grain bowls for a pop of colour and taste that’s entirely plant-based.

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Ingredients for Pickled mustard seeds

  • 60 g yellow mustard seeds

  • 240 ml champagne vinegar

  • 15 g caster sugar

  • 5 g sea salt

How to make Pickled mustard seeds

  1. Place the mustard seeds in a small saucepan and cover with cold water. Bring the water to a boil.

  2. Strain the mustard seeds, discarding the water, and repeat this process three more times.

  3. In the same saucepan, combine 250 ml of cold water with the vinegar, sugar, salt, and blanched mustard seeds. Bring to a boil, then remove from the heat.

  4. Pour the mixture into a small, sealable container and refrigerate overnight.

  5. When ready to use the pickled mustard seeds, scoop them from the brine, straining off any excess liquid.

Disclaimer
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

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Article history

The information on this page is peer reviewed by qualified clinicians.

  • 30 Jun 2025 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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