Träipen, sometimes treipen, is the Luxembourg

Luxembourg

Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

 variant of black pudding. The sausages are traditionally prepared from a hog's head (or offal

Offal

Offal , also called, especially in the United States, variety meats or organ meats, refers to the internal organs and entrails of a butchered animal. The word does not refer to a particular list of edible organs, which varies by culture and region, but includes most internal organs other than...

 and any other scraps of pork), fat

Fat

Fats consist of a wide group of compounds that are generally soluble in organic solvents and generally insoluble in water. Chemically, fats are triglycerides, triesters of glycerol and any of several fatty acids. Fats may be either solid or liquid at room temperature, depending on their structure...

, rind

Rind

Rind may refer to:*Peel *Pork rind*Rind , a giantess in Norse mythology*Rind, Armenia, also Rrind*Rind et al. controversy, about a study on child sexual abuse*Rind , a tribe in Baluchistan...

 and blood

Blood as food

Some cultures consume blood as food, often in combination with meat. The blood may be in the form of blood sausage, as a thickener for sauces, a cured salted form for times of food scarcity, or in a blood soup. This is a product from domesticated animals, obtained at a place and time where the...

. Other ingredients may include green cabbage, onions, honey and spices such as caraway

Caraway

Caraway also known as meridian fennel, or Persian cumin is a biennial plant in the family Apiaceae, native to western Asia, Europe and Northern Africa....

.

There are many variants to local recipes for its preparation but basically the meat and rind are boiled with salt, then minced and mixed with finely ground green cabbage. Fresh blood is added together with bread crumbs and the mixture is put into intestine casing

Casing (sausage)

Casing, sausage casing, or sausage skin is the material that encloses the filling of a sausage. Casings are divided into two categories, natural and artificial...

s. The sausages are then boiled for 15 minutes in a large saucepan until cooked.

Träipen are usually fried in a frying pan and served with apple sauce. They are especially popular at the Buergbrennen

Buergbrennen

Buergbrennen is a celebration centred around a huge bonfire which takes place on the first Sunday in Lent in Luxembourg and surrounding areas. In Germany it is called Burgbrennen, in France and Belgium it is known as the dimanche des Brandons...

celebrations on the first Sunday in Lent.