These indulgent Fat Tuesday Polish donuts are called Paczki (pronounced "poonch-key" or "punch-key"). You'll see these jelly or custard filled polish donuts for 1 to 3 days tops just before Fat Tuesday each year. These Polish pastries are a beloved symbol of Mardi Gras, bringing joy and sweetness to the festivities. These indulgent doughnuts are only available for a few days each year at bakeries, Kroger, and other grocery stores.