Cake Mix is an item found relatively often in the Paper Mario series. It restores 1 FP, but once cooked into a Mousse Cake, it will restore 15 FP. Even though this item is relatively weak, Cake Mix is an extremely useful cooking ingredient and is quite enjoyable to experiment with. For instance, cooking a Cake Mix with a Fire Flower will give you a Fire Pop, restoring 20 FP.

In Paper Mario, Cake Mixes can only be found, (with a few exceptions) in Shy Guy's Toy Box . You must defeat the Shy Guys holding it to have the Cake Mix. In Paper Mario: The Thousand Year Door, Cake Mix can be bought for 6 Piantas, (an equivalent of 18 coins) at the Pianta Parlor.