Naleśnik in Polish. Etymology is unclear but certainly slavic. Most current hypothesis claims it’s from “na liściu” meaning something baked on a leaf.

We eat them with various jams, Nutella, anything sweet, sweetened cottage cheese or quark or curd or whatever a “twaróg” would translate to is a popular filling too.

Paving all of them over would be a huge endeavor. I hope Putins orange labrador doesn’t take is as a challenge.