Hog Maw refers the stomach of a pig and the dish made of stuffed pig's stomach. Hog Maw is an old Pennsylvania Dutch dish which is traditionally stuffed with smoked and fresh sausage, potatoes, cabbage, onions and other ingredients then baked. Hog Maw is actually only the lining of a pig's stomach which is cleaned well cleaned well before using. This lining contains no fat, is just muscle and a thin layer of meat, similar to a a sausage casing with some meat on it.