Not setting aside enough time
Pierogi has the appearance of a simple food item, which may lead you to believe that they are simple to prepare. They aren't difficult to make, but the process can be time-consuming. Traditional Polish cooks will set aside many hours, if not an entire day, to make pierogi, so don't expect to whip these up in a couple of hours.
Making dozens or hundreds of pierogi is a holiday season tradition for many American families with Eastern European ancestors. The Pittsburgh Post-Gazette reported that one typical gathering began at 9 a.m., with doughnuts and coffee as the fuel of choice. By 11 a.m., that valuable fuel had been replaced with bottles of Miller Lite and shots of whiskey. By 4 p.m., the 28-member family production crew had created 701 pierogi in five different flavors, as well as countless memories. Families that make a large quantity of pierogi for the holidays usually boil them before freezing them.