The fruits most commonly used are blackcurrants, damsons, quinces, apples and medlars. A mixture of blackberries and either apples or damsons makes a good cheese.
Pick the fruit over and wash it, and roughly chop larger fruits. Put it into a pan with just enough water to cover and simmer until really soft. Pass the fruit pulp through a nylon sieve, using a wooden spoon (metal can cause discolouration). Measure the pulp and allow the following amounts of sugar:
For butters: ½-¾ lb. sugar to 1 lb. of fruit pulp.