Most people do not know - but the meat in canned chili for a Coney Island hot dog (invented in Detroit, BTW, not on Coney Island) is made from beef heart.
Nothing beats a downtown Detroit Layfayette Coney Island with mustard and onions. Pure heaven.
You can keep your Chicago style hot dogs with their tossed salad topping - give me a real Coney Island and an order of chili fries with a Vernors or Faygo Red Pop.
That was one of the few things I really missed when I started to keep kosher 38 years ago.
However, see post #11 for my home recipe.