Lard or cooking oil
Beat egg yolks with sugar until thick and yellow. Add cream, and flour mixed with baking powder and cinnamon or cardamom. Fold in the stiffly beaten egg whites and add more flour, enough to make a pliable dough. Chill. Roll out dough as thin as possible and cut into diamond shapes with knife or fluted pastry wheel. Make a slit in center of each diamond and pull the tip end of diamond through slit as far as it will go. Drop into hot shortening (350 F). Fry like doughnuts, but only until very lightly browned. They cook almost as fast as they are put into the hot oil, so they must be turned and taken out quickly. Drain on paper and sprinkle with sugar.