I was in the former Soviet Union and Poland in the
late 70's. They used to sell, I think they said the word, peroushkie,
(perogies), on the street corners, like they sell hotdogs and pretzels in
New York city. They were delicious.
I would put that discovery right up there with
chocolate bananas, which I first had as a kid when I went to visit my uncle in
Ca. and he took me to disneyland.