Chocolate Frosting 3

Ingredients 

• 1 Stick (1/2 cup) butter 
• 2/3 cup cocoa 
• 3 cups powdered sugar 
• 1/3 cup milk 
• 1 teaspoon vanilla 

Melt butter. Stir in cocoa. Alternately add powdered sugar and milk, beating on medium speed to spreading consistence. Add more milk, if needed.   
Add vanilla.