Hershey’s “Perfectly Chocolate” Chocolate Frosting

1 stick (1/2 cup) butter
2/3 cup HERSHEY’S Cocoa
3 cups powdered sugar
1/3 cup milk
1 teaspoon vanilla extract

Melt butter. Stir in cocoa. Alternately add powdered sugar and milk, beating to spreading consistency. Add small amount additional milk, if needed. Stir in vanilla. About 2 cups frosting.