Mix together the butter and icing sugar to form a basic icing. Add the cocoa powder and combine, then carefully beat in the milk.
2.
If you have a stand mixer, put all ingredients in the bowl and mix on a low speed until combined. Increase speed and beat for a further 5 minutes until light and creamy.
Cookbook Create gift certificates are personal and unique. They allow your loved one to make exactly the book they want with all of their favorite recipes.