Damson Gin is good. Prick the damsons and sprinkle with sugar, enough to half fill a litre glass jar. Pour in a bottle of gin and shake regularly, keeping in the dark meantimes. After three months (i.e. just before Christmas), filer off the Damson gin into a bottle and cheers! Keep the fruit, cut out the stones and coat in melted chocolate for an alcoholicky treat.
Damson gin is a wonderful winter warmer and slightly less bitter than sloe gin, not that sloe is particularly bitter but if you make both you will taste the difference. Some people add food-grade glycerine toward the end of the process to give good liqueur mouth-feel. This year I 've been told by someone that damson brandy is even better so I will give that a try for one batch. It makes a lovely gift for your firiends if you decant into small bottles (with your own label for them), or when they come visiting over the winter.