Hershey's "Perfectly Chocolate" Chocolate Frosting

• 1/2 cup butter
• 2/3 cup Hershey's cocoa
  
• 3 cups powdered sugar
• 1/3 cup full cream milk
• 1 tsp vanilla extract

*** Over low heat, melt butter and stir in cocoa powder. Alternately add powdered sugar and milk, beating to spreading consistency. Add small amount milk if needed. Finally stir in vanilla. Makes 2 cups of frosting.