How do I make rich dark chocolate icing?

You can make a rich dark chocolate icing by mixing your cocoa with some boiling water to make a paste. You then add this to the cake mix or icing like. Cocoa paste gets added to the marge of the icing once it has been beaten before adding icing sugar. If you are making a cake, where you cream your marge and sugar, you would add the cocoa paste at this stage (It should be the consistency of ultramel custard). If making a cake where you beat your eggs and sugar until light and creamy, add the cocoa paste to the rest of your liquids that you are going to add to your cake.