The Perfect Chocolate Frosting

Why would anyone buy a container of frosting when you could make some this good?  I have been trying to make this, but it has usually come out too watery.  This is PERFECT.  It will go great on cupcakes, cakes, brownies....just make sure you don't eat it all before it goes on the cupcakes!:)

You Will Need...                                                                    

~1 stick of butter

~3 cups powdered sugar
~3/4 cups cocoa
~2 Tablespoons Milk
~1/2 teaspoon vanilla


Let butter get to room temp.  Cream the butter and then add sugar and cocoa and then milk/vanilla.  Mix until it is creamy.