Porilainen

Categorically somewhere between a hamburger and a hot dog, porilainen is a simple Finnish sandwich consisting of slices of white bread filled with sliced pork sausage (usually jahtimakkara), vegetables, garlic flavoring, and condiments such as mayonnaise, mustard, or ketchup. It is believed that the sandwich was named after the city of Pori, although some claim that it was named after hampurilainen, meaning hamburger in Finnish. The sandwich can be bought at fairs and festivals from numerous street vendors.