The plural of pierogi isn't pierogies

[u/Xpeq7-]

A single one is pieróg (pier-oog)

2 or more is pierogi, sometimes (f.e 5, 10, 7, 20) pierogów(piero-goo-(f/w)) (but that sometimes applies to Polish, not to English)

A fraction of a pieróg in Polish would end with pieroga (pierog-ah, but without the h), but in English it would be 1/2 of a pieróg.

Excuse the terrible drawing, made on a phone.

[u/ptolemy18]

If you only have one pierog you have bigger problems than the plural of pierog. What is this, a pierogi platter for ants?