Watermelon rind jam: the tasty summer jam recipe

Step 4
Add the lemon zest and juice and the sugar, mix well and leave to stand for 30 minutes. Then cook for 30 minutes.

Step 5
Mix in the pan until smooth and cook for another 30 minutes.

Step 6
Leave to cool and pour into small jars.

Step 7
Close the jars and store them until you want to serve watermelon rind jam.