hello, I have used the same recipe for 3 years and never had an issue.. I iced a sheet cake and a ball cake over the weekend for my friend, smoothe it with hot scraper and then viva, smooth as silk, let it sit for 24 hours, came home the next day and the cakes were wrinkled, like they had been in a bath tub too long! The sheet cake not as wrinkly but it had cracks in the icing..
Can anyone tell me what happened?
I use high ratio shortening