add one or two sliced onions, the oyster liquor, a bunch of herbs, a pinch of salt, and three or four peppercorns
cover the whole with cold
Original Text
Sauce.—Chop up the bones from the fish, add one or two sliced onions, the oyster liquor, a bunch of herbs, a pinch of salt, and three or four peppercorns; cover the whole with cold