Blackberry and Apple Cordial

Put blackberries into a large saucepan with the apple juice. Bring to a boil; simmer over very low heat for 20 minutes, or until the fruit is soft.

Mash with a potato masher.

Line a plastic sieve with a double layer of cheesecloth.

Strain the juice through a plastic bowl.

Gather the corners of the cheesecloth and lightly squeeze to extract all the juice possible. Measure the juice.