I don’t use icing sugar when rolling out fondant. Like Sandra posted, I use a silicone mat, which is very lightly coated with shortening….Crisco (USA/Canada) Trex (Uk). Not sure what it is called where you reside. The beauty of the silicone mat, is you can lift the whole mat and place directly over your well chilled cake. If it’s extremely humid and you don’t have air conditioning, I would use cornstarch/cornflower to roll out. As cornstarch doesn’t add anymore sweetness, and it’s much easier to work with. After rolling out I usually let the fondant sit for 10-15 minutes before placing on the cake.
Creativity is God's gift to us. Using our creativity is our gift back to God. Clarky's Cakes 😎