Original Receipt in 'The Cook and Housekeeper's Dictionary' by Mary Eaton (Eaton 1822);GAME SAUCE. Wash and pare a head of celery, cut it into thin slices, boil it gently till it becomes tender; then add a little beaten mace, pepper, salt, and nutmeg. Thicken it with flour and butter, boil it up, pour some of it in the dish, and some in a boat. Lemon pickle or lemon juice may be added to it.