Use seasonal or frozen berries to make this at any time of year ... Ladle the mixture into a jug, then pour into sterilised jam jars or small freezer-proof containers with lids.

For this recipe you will need three sterilised 450g/1lb jam jars. Cut baking paper into circles the size of the opening on the jam jars. Put a saucer in the freezer. Place all the ingredients in a ...