Pound of pricked sloes (or frozen and thawed again to save the effort), half a pound of sugar, litre of gin. Sorry for imp/metric mix but they won't sell gin in imp measures any more. Put into a demijohn, agitate daily for a week or three, leave for as long as you like, strain, bottle, hide it and don't tell anyone or you'll suddenly have more friends than you realised. Most of mine gets spirited out of the house by my adult sons.
I have never seen such beautiful fat sloes as we have here this year.
Tastes pretty much like Benylin cough mixture to me, much prefer quince vodka.