Even though I grew up in New York, I’d never had a patty melt until just a few years ago. The classic version (a thin ground beef patty topped with either Swiss or cheddar cheese and grilled onions on rye bread, pan fried in butter) was said to have originated in Southern California in the restaurant chain of William “Tiny” Naylor in the 1940s or 1950s. It’s become a staple of diners, bars and dives all over the U.S.
Basically a happy, messy mashup of a grilled onion-topped burger and a grilled cheese sandwich, as soon as we made our first batch of Kimchi Pimento Cheese, we knew what we wanted to do with it.