Rub half a pound of butter into a pound and a half of sifted flour; and mix in half a pound of brown sugar, crushed fine with the rolling-pin. Add three table-spoonfuls of ginger, a tea-spoonful of powdered cloves, and a tea-spoonful of powdered cinnamon. Stir in a pint of molasses, and the grated peel of a large lemon, but not the juice, as you must add at the last a very small tea-spoonful of pearl-ash dissolved in tepid water, and pearl-ash entirely destroys the taste of lemon-juice and of every other acid. Stir the whole mixture very hard with a spaddle or with a wooden spoon, and make it into a lump of dough just stiff enough to roll out into a sheet about half an inch thick. Cut it out into small cakes about the size of a quarter dollar; or make it up, with your hands well floured, into little round balls, flattening them on the top. Lay them in buttered pans, and bake them in a moderate oven. They will keep several weeks. Use West India molasses.