MILWAUKEE COUNTYCustomers line up to buy paczki at National Bakery and DeliMilwaukee Journal SentinelEmployees Vanessa Vela, Carla Martinez and Mandy Norman are busy filling orders for paczki at National Bakery and Deli on Tuesday. Paczki are filled doughnuts of Polish origin available only on the day before Ash Wednesday. Co-owner Jeff Callin said the staff has been working continually for 18 hours to make nearly 50,000 paczki. Here's where to find paczki in MilwaukeeRick Wood / Milwaukee Journal SentinelPaczki customers line up to buy paczki early outside National Bakery and Deli on Tuesday.Rick Wood / Milwaukee Journal SentinelCustomers line up to buy paczki and king cake at National Bakery and Deli on Tuesday.Rick Wood / Milwaukee Journal SentinelMandy Norman takes an order for paczki.Rick Wood / Milwaukee Journal SentinelMandy Norman fills an order for paczki.Rick Wood / Milwaukee Journal SentinelCarla Martinez and Mandy Norman fill orders for nearly 50,000 paczki at National Bakery and Deli.Rick Wood / Milwaukee Journal SentinelThe staff made more than 50,000 paczki for Fat Tuesday at National Bakery and Deli.Rick Wood / Milwaukee Journal SentinelPaczki are jelly-filled pastry available only on the day before Ash Wednesday at National Bakery and Deli.Rick Wood / Milwaukee Journal Sentinel