Poop

Poop is something you use in cupcakes..... I think............... oh well......... the image has proof............................... Oh well................ LET'S PLAY BLUE'S CLUES! (Nooooooooooooooooooooooooooooooo!)

First clue: A toilet

Second clue: Desert

Third Clue: A digestive system.

Yeah. Its poo.