In the US the sausage is most often associated with Cajun cooking, where it is a coarse-grained smoked sausage made using pork, garlic, pepper, onions, wine, and seasonings. The pork used is mostly from a smoked Boston Butt roast. Once the casing is stuffed, the sausage is smoked again (double smoked). Nicknamed "The Andouille Capital of the World," the town of LaPlace, Louisiana, on the Mississippi River, is especially noted for its Cajun andouille. Andouille sausages are sometimes referred to in the US as "hot link" sausages.
Though somewhat similar, andouille is not to be confused with "hot links" or similar finely-ground, high fat, heavily peppered sausages.
Andouille in France
In France, particularly Brittany, the traditional ingredients of andouille are primarily pig chitterlings, tripe, onions, wine and seasoning. It is generally Grey in colour and has a distinctive odour. There is also a similar sausage available called andouillette, literally "little andouille".