Take a pint of gravy, put in an anchovy, take a quarter of a pound of butter rolled in a little flour, and stir all together till it boils. You may add a little juice of lemon, catchup, red wine, and walnut liquor, just as you please.
Plain butter melted thick, with a spoonful of walnut-pickle, or catchup, is good sauce, or anchovy: in short, you may put as many things as you fancy, into the sauce; all other sauce for fish, you have in the Lent chapter.