Take a good piece of a round of beef, and cut off all the fat. Rub the lean well with salt, and let it lie two days. Then put it into ajar, and add to it a little water in the proportion of half a pint to three pounds of meat. Cover the jar as closely as possible, (the best cover will be a coarse paste or dough) and set it in a slow oven, or in a vessel of boiling water for about four hours. Then drain off all the gravy and set the meat before the fire that all the moisture may be drawn out. Pull or cut it to pieces and pound it for a long time in a mortar with black pepper, cloves, mace, nutmeg, and oiled fresh butter, adding these ingredients gradually, and moistening it with a little of the gravy. You must pound it to a fine paste, or till it becomes of the consistence of cream cheese.
Put it into potting cans, and cover it an inch thick with fresh butter that has been melted, skimmed, and strained. Tie a leather over each pot, and keep them closely covered. Set them in a dry place.
Game and poultry may be potted in this manner.