https://hongkong.asiaxpat.com/Utility/GetImage.ashx?ImageID=19aea850-6500-4c9c-98ff-6cb7cd205d91&refreshStamp=0
From all across the country, people used to make different types of dough and stuff it with various fillings.This way, the many “faces” of Russian dumplings appeared. Not just ‘pelmeni’, as you might have thought!
https://www.rbth.com/russian-kitchen/333437-russian-dumplings-guide