The Philly cheesesteak started as a pile of chopped steak, salt, pepper and onions on a roll. But then Cocky Joe, a guy working at Pat’s King of Steaks, added cheese, beginning a distinct sandwich culture in Philadelphia that continues to evolve.
Reporter Buffy Gorrilla visits where it started and tells us where it’s going.
This article was originally published on WBUR.org.
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