Blood Sausage or Black Pudding From the Joy of Cooking (, ), by Irma Rombauer & Marion Rombauer Becker.
In France, this is known as boudin noir; in Germany, as Blutwurst.
Have ready: Sausage casings. Cook gently without browning 3/4 cup finely chopped onions in 2 tablespoons lard. Cool slightly and mix in a bowl with 1/3 cup whipping cream, 1/4 cup bread crumbs, 2 beaten eggs, a grind of fresh pepper, 1/8 teaspoon fresh thyme, 1/2 bay leaf (pulverized), and 1 teaspoon salt. Add 1/2 lb leaf lard diced into 1/2-inch cubes and 2 cups fresh pork blood.
Fill casings only three-fourths full; the mixture will swell during the poaching period. Without overcrowding, put the sealed casings into a wire basket. Bring to a boil a large pan half full of water or half milk and half water. Remove pan from heat and plunge the basket into the water. Now return pan to very low heat (about 180°F; 82°C) for 15 minutes. Test for doneness by piercing sausage with a fork: if blood comes out, continue to cook about 5 minutes more or until barely firm. Should any of the sausages rise to the surface of the simmering liquid, prick them to release the air that might burst the skins.
To prepare, split and grill them very gently.