Kohlwurst

Kohlwurst, Lungenwurst or Lungwurst is a simple, fresh, strongly smoked sausage made of lights, pork and fat, which is mostly eaten cooked with kale (cabbage) dishes such as Knieperkohl. (The word "Kohl" in German refers not only to kale, but to vegetables in the cabbage family; the sausage does not contain these vegetables but they are commonly served with it.) It is mainly used in Northeast and Northwest German and Silesian cuisine, as well as in southwestern parts of Denmark, where it is called "kålpølse" (kale sausage). Comparable sausage types are Bregenwurst and Pinkel.

Source: Wikipedia