9. Fondant may make for a beautiful cake, but...

Rolled fondant—the smooth coating seen on elaborate wedding and reality-show competition cakes—is a combination of gelatin, glycerin, and sugar that forms into an easily molded dough. It doesn’t taste very good, though. Poured fondant is a cooked-sugar syrup that’s used as a cake filling, in candies, or to top petit fours—you might know it better as the center of a Cadbury Crème Egg.