Sloes are easy to identify, their plump berries look like juicy purple grapes. Try to pick around 400g to make one 1litre of gin.
Wash your foraged sloes well and remove any twigs or leaves. Next, sterilise a needle by holding it over a flame and prick your berries all over. Place them in a large airtight jar.
Then pour over 1 litre of good quality gin. Secure the lid and shake well.