Pierogi are filled dumplings made by wrapping unleavened dough around a savory or sweet filling and cooking in boiling water. They are often pan-fried before serving. Pierogi or their varieties are associated with the cuisines of Central, Eastern and Southeastern Europe. 

Pierogi are an important part of Polish culture and cuisine today. They are served in a variety of forms and tastes (ranging from sweet to salty to spicy) and are considered to be the national dish. They are served at many festivals, playing an important role as a cultural dish. At the 2007 Pierogi Festival in Kraków, 30,000 pierogi were consumed daily.Polish pierogi are often filled with fresh quark, boiled and minced potatoes, and fried onions. This type is called in Polish pierogi ruskie, which literally means “Ruthenian pierogi” (sometimes being mistranslated as “Russian pierogi”). Ruskin pierogi are probably the most popular kind of pierogi in North America and Poland. The other popular pierogi in Poland are filled with ground meat, mushrooms and cabbage, or for dessert an assortment of fruits (berries, with strawberries or blueberries the most common). Sweet pierogi are usually served with sour cream mixed with sugar, and savory pierogi with bacon fat and bacon bits or sautéed onion