1/4 cup dry any-style cocoa (for light flavor)
   or 1/2 cup (for medium flavor)
   or 3/4 cup (for dark flavor)
1 (16 ounce) package confectioners' sugar
6 tablespoons butter or margarine, softened
4 to 5 tablespoons milk or water
1 teaspoon vanilla extract

In small bowl, stir together desired amount of cocoa and confectioners' sugar.

In small mixer bowl, beat butter with 1/2 cup of cocoa mixture; blend well. Add remaining cocoa mixture with milk, beating to spreading consistency. Blend in vanilla extract.