"Corley" > wrote in message
...
>
> A patty melt is a type of sandwich consisting of a hamburger patty,
> pieces of sautéed or grilled onion, and Cheddar or Swiss cheese between
> two slices of bread (traditionally rye, though sourdough is sometimes
> substituted). The sandwich is then fried with butter on a frying pan so
> that the cheese melts thoroughly.

Been to Wikipedia have we?