Porilainen
Porilainen is a sandwich and street food dish in Finnish cuisine made from white bread and a half-inch slice of thick baloney like sausage, normally Jagdwurst. You might add optional, diced sweet onion, chopped pickled cucumber, ketchup, mustard, and in some cases mayonnaise. Some even add fried egg.
Porilainen is a combination of a hamburger and a hotdog, and the name may be a twist on the Finnish for "burger", but it also is a pun for something originating from the city of Pori.