Well, as I also have a HUGE crop of redcurrants, I thought I had nothing to loose so this is what I whipped up today.
I can't remember exact amounts, but it was about half a bottle of gin, a pound of redcurrants all whizzed up in my blender, and about 6 oz of caster sugar. All placed into a sterile jar and in my cupboard for the next 4 or 5 months (sitting nicely next to my jar of stewing cherry brandy!) I will then strain it through a muslin cloth, and bottle and leave for as long as I can stand before giving it a whirl! ;D
(Also made recurrant and rhubarb jelly and strawberry and redcurrant jam)