The Polish word pierogi is plural.

Its singular equivalent, pieróg is not normally used.  Pierogi are always served two or usually more so for that reason the plural term is usually associated with this dumpling. 

Traditionally considered ‘peasant food’, the exquisite taste of pierogi quickly spread across Poland throughout all social classes including nobles. Outside Poland, they are very popular in other European countries such as Slovakia, Romania and Ukraine.

Many cookbooks from the 17th Century describe pierogi as a staple of the Polish diet, and each traditional holiday had its own special kind of perogi. In Czech and Slovak pirohy is also the plural, piroh being the singular noun. In Germany, this type of dumpling is called Pirogge in ithe singular and Piroggen in the plural, although sometimes the Polish name Pierogi is used.

There are some people who know the history of Eastern European food and believe that some kind of original version of pierogi was imported from the Far East. Some say that the earlier version of pierogi had come from China and traveled to Italy during the expeditions of Marco Polo. We may never completely know.

In Poland pierogi have been made since the thirteenth century. The word pierogi appears for the first time in Polish literature in the second half of the 17th century which is the time when some of the first Polish cookbooks were published. In this distant past pierogi were exclusively prepared on and during the different holiday seasons.

In many regions of Poland, the so-called Ruskie pierogi are well known. The name does not indicate any Russian origin, since such food is unknown in Russia. Ruskie pierogi comes from the prewar Poland’s region called Red Ruthenia which today it is within a territory of the Ukraine. 

Polish pierogi are quite common in United States and Canada. Pierogi were imported to North America by Polish immigrants more than one hundred years ago. This Polish food is most known in Illinois, Pennsylvania, Indiana, Michigan, New York, Connecticut, Ohio, New Jersey, Massachusetts and Wisconsin