- 6 cups (1500ml) icing sugar
- 3/4 cups (190ml) butter
- 3/4 cups (190ml) milk
- 1 tsp vanilla extract
Put the icing sugar, butter and milk in the bowl of an electric mixer. The butter should be slightly softened. Stir the mixture together gently with the paddle before turning the mixer on to prevent any dust flumes.
Cream the mixture on a medium-high speed for a few minutes. Add more icing sugar to thicken the mixture, using a half cup at a time, mixing by hand. Mix for a final minute on a medium-high speed, until the colour begins to lighten. Finally, add a teaspoon of flavouring, such as vanilla.