Sloe gin
is a doddle!!
I'm sure a google search will find plenty of recipes but my method is:
Buy a cheap bottle of gin from Lidl or somewhere.
Pour out about 1/2 pint into a jug.
***** the sloes - about a good couple of handfulls will normally do a 70cl bottle - with a cocktail stick (if you can be bothered - it's not essential)
Plop the sloes in the bottle.
Add about 2-3 tbsps white sugar.
Top up with the gin you took out.
Use the left over gin for a large gin and tonic or two.
Ready after 6 months, but better after a year if you can keep it that long. Mine rarely reaches a year old.
They say that sloes benefit from a good frost, but they seem to be earlier and earlier each year, so you could pop the sloes in the freezer overnight before using them if you want.
Then (again if you can be bothered), the sloes can be added to sherry to produce a fortified sherry in the same way and then if you stone the sloes, chop them up and mix them with melted dark chocolate you can make your own liqueur chocolates.
BTW, sloes are the fruit of the blackthorn bush - dark blue-black, a big stone and sour as hell.