Garnishing of Oysters with Jelly

Open some large oysters, poach, remove the muscle and split them in two through their thickness; cover both sides with a layer of jellied mayonnaise (No. 613) and reshape them as before; then lay them slightly apart on a baking sheet; brush the surfaces several times with half-set jelly, and keep them for a few moments on ice; afterward remove by cutting away the jelly all around with a plain pastry cutter dipped in hot water; detach the oysters from the sheet, heating this underneath, then dress.