Never having made Sloe Gin but I have spotted a tree with loads of ripe Sloes and have a bottle of Gin from Spain, so how many Sloes are needed for one litre of Gin? Will probably add sugar syrup later to taste. I intend to freeze the Sloes, add them to the Gin and leave till Christmas. I would be grateful for any hints and tips re. making it, can manage drinking it OK.