Wiktionary
cotechino
n. A kind of pork sausage from Emilia-Romagna in Italy.
Wikipedia
Cotechino
The cotechino is an Italian charcuterie product, similar to salami, but requiring cooking; usually it is boiled at low heat for about four hours. Its name comes from cotica (rind), but it may take different names in the different production areas. According to tradition, it is served with lentils on New Year's Eve, because lentils—due to their shape—are 'credited' to bring money for the coming year.
It is prepared by filling the natural casing with rind, pork meat (usually of secondary choice), and fat mixed with salt and spices; in industrial production, nitrites and nitrates are added as preservatives.