Rich chocolate fudge icing.
1 In a saucepan, melt butter and brown sugar over medium heat. Stir until sugar is dissolved, then add milk. Bring to a boil and remove from heat.
2 Sift together cocoa and confectioners sugar. Blend into butter mixture and add vanilla. If consistency is too stiff, add more milk.
3 Spread Quickly over cooled cake, as frosting will set up very fast.