Recipe courtesy of Barbara Rolek/About.com.
There is some debate as to who invented kolaczki (plural for kolaczek). Poles claim it but so do Croatians, Czechs and others. Kolaczki can be round, square or diamond shaped, and the dough can be flaky or yeast-risen, and the spelling varies widely.
My family always preferred the flaky kind made with a cream cheese dough, and apricot, raspberry, prune and sweet cheese were our fillings of choice. Nowadays, anything goes — almond, poppyseed, strawberry, blueberry, even pineapple. This is a great kids project.
Makes about 5 dozen.