If you are doing a multi-tiered cake, measure one tier at a time. For any other cake, measure the greatest width across the top (this would be diagonal from corner to corner on a square or rectangle cake) and then add twice the height.
Consider using a cake decorating turntable to make this step easier and quicker. You can also use light or dark ganache or apricot jam instead of buttercream. [3] X Research source
If it is humid where you live, use a mixture of one part cornstarch and one part powdered sugar. If it is very dry, then consider using a thin layer of vegetable shortening. [4] X Research source
Knead some tylose powder into the fondant if you’d like it to dry and harden more quickly. Consider kneading in some gel or paste icing color. You can also add in some flavoring as well. Do not use a liquid food coloring. [5] X Research source
Lightly the rolling pin with powdered sugar before attempting this.
Add shine by spraying it lightly with cooking oil mist and smoothing it over again.
