Potted Shrimps, or Prawns

• Shrimps (unshelled), 2 quarts
• butter, 2 to 4 oz.
• mace,

Let the fish be quite freshly boiled, shell them quickly, and just before they are put into the mortar, chop them a little with a very sharp knife; pound them perfectly with a small quantity of fresh butter, mace, and cayenne.