Leberwurst or Liverwurst is a German liver sausage, of which there are many types. Most leberwursts are made with pork, pork or veal livers and may also contain truffles, plus peppercorns and flecks of back fat. Leberwursts are usually finely minced, lightly smoked and bought ready-to-eat, as slices or a spread.
Dowell, P., Bailey, A. (1980) The Book of Ingredients, Dorling Kindersley. ISBN 0718119150.