We have 3 or 4 places down in Minneapolis & St. Paul that make them. There are 2 that stake the claim that they were the first to do it. I have yet to actually go try one at one of the establishments (Matts Bar & the 5-8 club). However I have made my own & they a tasty treat! Don't cook 'em to hot though, otherwise all that juicy goodness will blow out the side(bleu cheese mod) & make sure you seal them well. I think I know what I am making this thanksgiving weekend!