Pierogi are classic Polish dumplings that are boiled or fried and stuffed with mashed potatoes and melted cheese. Making pierogi is pretty involved and takes 2-3 hours to prep and cook. It’s worth the extra time to make it yourself since these turned out great. I was really happy with the flavor of the filling and the dough. The crispy, sauteed onions, chives and sour cream were a nice topping that worked well with the pierogi.