I find this discussion fascinating.
I was born, raised and educated in Eastern Pennsylvania (roughly 325 miles (523 km) from Dave in western Pennsylvania) and I have never heard of the word Pierogie until this evening.
We were not a family of gourmets - far from it. But we did live close enough to America's largest Amish community and were lucky to have varied, wholesome, and chemical free foods which ended up in exotic dishes from families that had immigrated from all over the world.
And I never heard of scrapple until I was in college.
They have "pierogie races" at the baseball games in Pittsburgh, where costumed characters run the basepaths.
NOT A TEACHER
I have just read this informative (and frightening) sentence (the words in bold are my
emphasis):
"Our global food supply is far-flung -- a single patty can combine meat from
multiple countries -- but tracing it is crucial for safety."
Source: from an advertisement for the magazine Bloomberg Businessweek in the December 19, 2011, issue of the magazine The New Yorker.