From the song in Beauty and the Beast sung by Lumiere, "try the grey stuff, it's delicious, don't believe me, ask the dishes...."
Well at Be Our Guest restaurant in Magic Kingdom they do serve "the grey stuff." It's a grey colored frosting, usually on a cupcake, but I think they have had other deserts with it too. Oh, and it is delicious, no need to bother the dishes about it.