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A close up of two slices of toast spread with butter and plum jam.
4.91 from 21 votes

Easy Plum Jam – Conserve Method

This easy plum jam recipe uses the conserve method to preserve the fresh flavour of the fruit. No pectin needed.
Servings: 30 servings
Prep Time10 minutes
Cook Time30 minutes
Steeping time8 hours
Total Time8 hours 40 minutes

Ingredients

  • 500 g plums
  • 500 g sugar
  • 1-2 tbsp lemon juice - Riper fruit needs more lemon, firmer fruit needs less. 

Instructions

  • Cut the plums in half and remove the stones. Cut each half in to about 8 pieces.
  • Put half the plums into a bowl and cover with half the sugar. Then repeat with the second half.
  • Cover the bowl and leave overnight. The sugar will draw the juice out of the plums and you will have pieces of plum in a thick deep red syrup. There will be some sugar left not dissolved.
  • Transfer the plum and sugar mixture to a good sized saucepan (about 4 volume of the plum and sugar mixture), add the lemon juice.
  • Put on a low heat and bring to a gentle simmer, stirring all the time to dissolve the remaining sugar.
    Meanwhile sterilize clean jam jars and lids by placing them on a baking tray in the oven at 120°C/250°F/GM1.
  • Once the sugar has dissolved turn the heat up high and bring the jam up to a rolling boil until it reaches the setting point of 105°C.
    Test for set by placing a teaspoonful of jam onto a chilled plate, or use one of the other methods for testing the set.
  • Once the jam has reached setting point, take the pan off the heat and allow to cool for a few minutes.
    Spoon the jam into the prepared warm jars (a jam funnel helps avoid mess) and seal with the lids before the jam cools. Once cool, label the jars and store in a cool, dry place.

Notes

  • The lemon juice is not essential for set unless your plums are very ripe, but it does add some extra flavour.  
  • Makes 2–3 jars
Nutritional Information
  • This recipe is 3 Weight Watchers Smart Points per portion
• Please note that the nutrition information provided below is approximate and meant as a guideline only.
• Unless stated otherwise cup conversions have been made with an online tool. For accuracy please check with your favoured conversion tool. We recommend buying inexpensive digital kitchen scales.
Calories: 20kcal | Carbohydrates: 5g | Protein: 1g | Fat: 1g | Saturated Fat: 1g | Sodium: 1mg | Potassium: 7mg | Fiber: 1g | Sugar: 5g | Vitamin A: 15IU | Vitamin C: 0.6mg | Calcium: 1mg