Put two dozen of oysters with their liquor into a stewpan, place over a fire, and when a little firm, drain them upon a sieve, catching the liquor in another stewpan; detach the beard from the oysters, and throw them again into their liquor; add half a blade of mace, place again upon the fire, and, when boiling, add a piece of butter the size of a walnut, with which you have mixed a teaspoonful of flour; shake round over the fire until becoming thick, season with a little cayenne, and salt if required; have an escalop shell, well buttered and bread-crumbed; place the oysters in, sprinkle bread-crumbs over, put it in the oven a quarter of an hour, pass the salamander over, and serve. The yolk of eggs may be added, and less flour.