To make a red coloring for icing. Take twenty grains of cochineal powder, twenty grains of cream of tartar, and twenty grains of powdered alum. Put them into a gill of cold soft water and boil it, very slowly till reduced to one half. Strain it through thin muslin, and cork it up for use. A very small quantity of this mixture will color icing of a beautiful pink. With pink icing, white nonpareils should be used