Put a piece of butter, about the size of a hen's egg, into a saucepan;
when it is melted, shake in a little flour, and let it brown; then by
degrees stir in the following ingredients: half a pint of small beer,
the same quantity of water, an onion, a piece of lemon-peel cut small,
three cloves, a blade of mace, some whole pepper, a spoonful of
mushroom-pickle, the same quantity of ketchup, and an anchovy. Let the
whole boil together a quarter of an hour; strain it off, and it will be
a good sauce.