1 (1 pound) box confectioners' sugar
1/3 to 1/4 cup Crisco
1/2 teaspoon salt
1 scant teaspoon cream of tartar
1/4 cup water
1/2 teaspoon vanilla extract, or flavor desired

Mix all ingredients together and beat at medium speed with mixer for 7 to 8 minutes, or until smooth and lump-free. Stop, then beat again. If too thick, add drops of water while beating until of desired consistency. Tint icing the color or colors desired using a paste cake coloring such as Wilton. Regular food coloring tends to run.

Icing or icing leftovers will keep indefinitely in the refrigerator. To use later, beat again to make smooth. A little water may need to be added. Icing may be spread directly on cake or piped through decorative tips.