Ingredients

The following ingredients have 20 Servings
  • 450 g blackberries
  • 450 sugar
  • 2 tbsp lemon juice ((about a whole lemon))

Instruction

  • Wash the blackberries discarding any which are damaged and place in a saucepan.  Add the sugar and lemon juice and stir.
  • Leave for an hour to allow the sugar to draw the juice from the fruit.  Then heat gently to dissolve the sugar.
  • Once all the sugar is dissolved, quickly bring the temperature up to boiling to set the jam. Test with either a thermometer for a setting temperature of 105C, or another method as detailed in this post.
  • Spoon into sterlized, heated jam jars, seal with lids and allow to cool.