How To Decorate A Sheet Cake For Beginners. It’s not uncommon to see folks going back for second and even third pieces. Use an airbrush or color spray to apply your preferred edible color on the sugar sheet, then sprinkle the sheet with different hues.changing the position of the spray will allow you to create varied depths in the artwork.these icing sheets are very pleasing to the eye.there are various options when it comes to decorating a cake using edible icing sheets, and the number.

Insert plastic straws in the cake in which you will insert the stalks. Now apply the crumb coat to the whole cake, then chill the cake for 15 to 30 minutes. This allows the crumb coat to fully set before you apply the final coat of frosting.