Quote Originally Posted by Don42 View Post
It's splitting them, probably to make Jucy Lucys with cheese in the middle. See https://en.wikipedia.org/wiki/Jucy_Lucy
Na just take 2 patties lightly sear 1 side flip them add cheese to 1 then lay the other on top press them together the finish cooking like a regular thick burger you have the same effect and the raw blood does not infuse with the cheese
but I prefer schnitzel cordon bleu