How Do You Stiffen Icing For Decorating?
To stiffen icing for decorating, you can add powdered sugar or meringue powder to the recipe. Simply add a tablespoon of powdered sugar to the icing at a time, until the desired stiffness is achieved. Meringue powder can be used in the same way, but it also adds a slight vanilla flavor to the icing. Another method is to refrigerate the icing for 15-20 minutes to allow it to firm up before using it for decorating.