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Courgette Relish on a wooden box with forks
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5 from 5 votes

Courgette Relish

A sweet tangy relish which goes with anything and everything.
Prep Time40 mins
Cook Time10 mins
Overnight resting12 hrs
Course: Condiment
Cuisine: British
Servings: 80 servings
Calories: 86kcal


  • 1.5 kg courgettes julienned, about 12
  • 1 kg spanish onions grated, about 4
  • 2 red peppers sliced very thinly, then quartered lengthways
  • 3 tablespoons salt
  • 1.5 kg granulated sugar
  • 925 g white wine vinegar
  • 1.5 tablespoons turmeric
  • 1.5 tablespoons white mustard seeds
  • 3 teaspoons celery seeds
  • 3 teaspoons nutmeg
  • ¾ teaspoon ground white pepper


  • Place the courgettes, onions, peppers and salt in a large preserving pan, cover with water and leave to stand overnight.
  • The next day drain and rinse well to remove the excess salt.
  • Return the courgette mix to the preserving pan and add the rest of the ingredients.
  • Bring to the boil, then turn down and simmer for 10 minutes.
  • Decant into sterilised jars*. It is ready to eat straightaway or you can store in a cool dark place until needed for up to a year.


  • Yield 8 x 380ml jars

To sterilise the jars

Place the very clean jars you would like to use in an oven pre-heated to 140°C for 20 minutes. Sterilise the lids by dropping them into a saucepan of boiling water for 10 minutes. It is best not to sterilise lids in the oven as they can easily ruin.

How to store

Unopened courgette relish will keep for up to 6 months if stored in a cool dry place. Once opened store in the fridge and consume the relish within 2 weeks.

Ingredient measurements

  • Please note when you see ‘grams’ listed as opposed to ‘millilitres,’ or any other term of measurement, that is not incorrect. I weigh all of my ingredients, including liquids, for accuracy.
  • US customary measurements for the ingredients provided are based on a conversion calculator. This recipe was tested with metric measurements and I recommend using a digital scale to weigh ingredients for the most accurate results. READ MORE >>> Why you should always weigh vs measuring with cups

Nutrition information

Please note that the nutrition information provided below is an estimate based on an online nutrition calculator. It will vary based on the specific ingredients you use. Please seek a professional nutritionist’s advice for further clarification.
The estimated nutrition serving is for 1 tablespoon serving of relish.


Calories: 86kcal | Carbohydrates: 21g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 265mg | Potassium: 84mg | Fiber: 1g | Sugar: 20g | Vitamin A: 131IU | Vitamin C: 8mg | Calcium: 9mg | Iron: 1mg