Lekvar

Lekvar or prune butter is a very thick puree of pure fruit, usually prunes or apricots used in filled pastries and cookies. It is jam-like so that it will not ooze out of the item it is used in. The mixture is prepared by cooking the fruit in water until the fruit softens. The fruit is then blended with sugar into a thick puree. Lekvar is Eastern European in origin.