Boudin is a type of sausage, containing pork, liver, rice, vegetables, and seasoning.  While living in Louisiana, I fell in love with this sausage.  Pretty much any gas station you go into in Louisiana, you will be able to find some Boudin for sale.  I have done this recipe several times and it always comes out great. 

2 3/4 pounds pork butt, cut into chunks
1 pound pork liver, cut into pieces
2 quarts spring water
1 cup chopped onions
1/2 cup chopped bell peppers
1/2 cup chopped celery
5 teaspoons Cajun seasoning
2 teaspoons cayenne
1 1/2 teaspoons black pepper
1 cup minced parsley
1 1/4 cup chopped green onions
6 cups medium-grain rice (cooked)
Put the pork, liver, water, onions, bell peppers, celery, 1 teaspoon of the salt, 1/4 teaspoon of the cayenne, and 1/4 teaspoon of the black pepper in a large heavy pot. Bring to a boil, reduce heat and simmer for about 2 hours. Drain and reserve 2 cups of the broth.

Grind the pork and liver together with 1/2 of the parsley and 1/2 of the green onions in a meat grinder fitted with a 1/4-inch die. Add the rice, and the remaining salt, cayenne, black pepper, parsley, and green onions and mix well. Add the broth, slowly, and mix. Stuff the mixture into sausage casings or otherwise utilize the mixture. If stuffed into casing it should be heated in a steamer or rice cooker. Heat in oven or on the grill for a crisp casing. Serve warm. Freeze leftovers.