My best friend growing up was Polish and his mom used to make them homemade for us. Incredibly good. Unfortunately she's been gone many years now.
There's a sizable Polish population in Metro Detroit. Hamtramck is a city within a city, completely surrounded by the city of Detroit. It was at one time one of the largest Polish concentrations outside Europe. It still has a number of Polish folks and Polish restaurants. There's also a large Polish cultural center in Troy, a bit north of Detroit.
I'm rambling.