Cream 1 cup of butter with 2 cups of brown sugar; add 4 beaten eggs, 1 teaspoonful of soda dissolved in 1 large cup of strong coffee, 1 cup of molasses, 4 cups of sifted flour, 1/2 teaspoonful each of nutmeg, allspice, cloves and mace, 2 teaspoonfuls of cream of tartar sifted with 1/2 cup of flour, 1 cup of raisins, 1/2 cup of currants and chopped citron. Mix well and fill buttered gem pans 1/2 full and bake until done. Then cover with chocolate icing.