Having your cake and eating it too just got easier with this invention by Harvard Student John McCallum. It’s Spray Cake, basically cake batter in a can! All the other inventions can go home now. Just spray the batter and stick that mess in the microwave. You don’t even need an oven which leads me to believe: no adult supervisor required! You hear that mom? I don’t need you! Jk jk, drive me to the mall?