Sophie’s Icing Recipe
200 g powdered sugar
20–30 g egg white
Whisk the powdered sugar and the egg white with an electric beater for several minutes until it is airy and shiny. If it has not turned shiny, continue whipping. If it seems too runny add more powdered sugar, or if too solid add a few drops more egg white. If you want your icing pure white, add a drop or two of lemon juice or white vinegar.