https://www.youtube.com/@varenykycaUkrainiandishes
Do not defrost.
Boil:
Place the perogies/varenyky in boiling salted water and stir to avoid sticking to the pan bottom. Bring to a boil, and cook for 6 - 8 minutes until ready.
Boiling & Frying:
Place the perogies/varenyky in boiling salted water and stir to avoid sticking to the pan bottom. Bring to a boil and cook for 3 - 4 minutes. After that, put it onto a preheated frying pan with some vegetable oil. Fry till getting a golden-brown crust.