Fruit butters are made by cooking fruits until they become a paste. Fruit butters have lower sugar content than jam and thicken without the need for pectin. Fruit cheeses are basically butters that have been cooked further until they are of a more solid consistency and can be sliced.
Fruit butters and cheeses can be frozen but is more commonly to jar them up just like jams. They will keep for few months but should e refrigerated after opening. Many improve in flavor if left for few weeks before eating. Most common fruits used for butters or cheeses are: apples, pears, plums, peaches, apricots, grapes and blackcurrants. You can also add spices to them if you like. You can use cinnamon, ginger or allspices. Some fruits will need a little water, juice or cider added whilst cooking.