Hershey's One-Bowl Buttercream Frosting

6 tablespoons butter or margarine, softened
2 1/2 cups confectioners' sugar
1/2 cup Hershey's Cocoa or Hershey's European Style Cocoa
4 to 6 tablespoons milk
1 teaspoon vanilla extract

Beat butter in medium bowl. Add confectioners' sugar and cocoa alternately with milk, beating to spreading consistency. Stir in vanilla extract.

Makes about 2 cups.