Pączki donuts are traditionally made just before Lent as a delicious way to use up ingredients in the pantry that would normally be given up as a Lenten sacrifice—such as butter, sugar, and jam. Try not to reroll the dough more than 2 to 3 times. This will prevent the donuts from turning slightly tough and from frying up unevenly. Freeze-dried strawberries add a terrific flavor to the jelly donut's sugar dusting. If you enjoy floral flavors, try filling the donuts with rose petal jam.