Blend thoroughly, scraping down the sides occasionally. Once the green has completely disappeared, the icing is done. It should look like thick chocolate frosting.
1 1/2 cups icing sugar 1/2 cup butter 1/2 cup cocoa powder 1 tsp vanilla Milk as required (approx. 1/2 cup) Mix the icing sugar, butter and vanilla in a bowl and beat together to cream it, adding milk ...
Allow to cool until the chocolate no longer feels hot to the touch. Beat the butter in a bowl until soft, then gradually beat in the icing sugar. Add the vanilla extract and beat again.