Can I cover an edible frosting sheet with color dust? I want to frost a cake with chocolate icing but the outer part of the cake needs to be gray. (The person who it's for does not like white chocolate or fondant.) I was wondering if I could cover the cake with white sugar sheets and then color the frosting sheet with edible gray dust. I've never used frosting sheets before and it seems that they melt into the icing, is that right? If so, would that make it impossible to color the cake with dust? How would it affect the color?

Hi, I am not sure if I am following you well.  Airbrush would be the best way to color the sheet if you are not printing on it. You will need to put something on that will allow the dust to adhere to it.  Are you printing on it too? If you are the dust if it is resting on it and not stuck to it will lay on top like sprinkles.  But if you add something to the sheet to make it stick it can ruin the image unless you use crisco!

i hope this helps, I was a bit confused! 

Thanks for the reply! No I'm not printing on them. The outside layer of the cake needs to be a matte gray. When I looked up prices, it seemed to be cheaper for me to buy a small package of white frosting sheets and some gray color dust rather than gray sheets (the only place I could find gray frosting sheets were pretty expensive). Since I don't think I can turn brown chocolate icing gray, I wanted to know if I could use crisco to adhere color dust on top of a white frosting sheet to cover the brown color of chocolate icing. I just don't know if this would work.

We are on the way of developing edible frosting sheet technology on chocolate icing. Is this what you are looking for?

Something like this

Ariel, Crisco would work just fine for what you are trying to do. Use a paper towel or a paint brush to apply a very thin coat.  It will make it a bit shiny as well.

Adriatix, There is already frosting sheets that work on chocolate.  Icing Images offers transfer sheets as well as their premium brand icing sheet works well.