Here's a recipe from my dim distant past. It will produce a wine of about 12 %abv. I confess it must be well over 12 years since I last made it -- this also will explain the ancient methodology! But I can guarantee that it will work For a gallon ( imp) of a dry and fruity wine.
4 lbs of Damsons
1 kg of sugar
1/2 lb of Sultanas ( white raisins to the US readers) Yeast of your choice Yeast nutrient ( from your local Home Brew shop) Pectin Enzyme
1 gallon of water
remove stalks and then crush the damsons well by hand -- there will not be a lot of juice from damsons -- the aim is to break open the skins of the fruits. Chop the sultanas and add to the fermentation bucket. Add 1/2 gallon of water and mix well. Add a solution of a little water with a crushed campden tablet in to the must.
Boil all the sugar in 3 pints of water ( 60 fl ozs) for two minutes and when it is cool add it to the must and stir well. Add the yeast , Nutrient and a small teaspoon of pectin enzyme ( this is to help in the breakdown of the fruit fibres). Cover and ferment for 7 days stirring daily to break up the "cap" Strain and wring out the fruit tightly to extract the maximum of the must. Return the must to a clean fermenting bucket and leave undisturbed for another 3 days. Then carefully rack off into a sanitised 1 gal demijohn, ( carboy ), leaving behind as much of the lees as possible. Top up with cooled boiled water to the neck of the demijohn and fit a fermentation lock
Leave to ferment out to completion.
Best aged for at least a year
It will be seen that this is a very ancient recipe and dates from about 1973 as far as I am concerned.
I have also a recipe for a more full bodied and higher abv, medium sweet damson wine made by similar ancient & uncomplicated methods which really needs 2 years aging before it is quaffable!