I searched for one of the recipe and it says, vanilla extracts, butter, glucose i.e. food color flour, corn syrup and icing sugar/powdered sugar. No matter how much flour/icing sugar I try to add, it does not come out as a smooth texture that I can roll out and put over the fondant in one piece. So, kindly help as I would like to make a good marble cake fondant? Thank you and have a nice day.