Two Harvard University students won first place and $10,000 in the 2014 Harvard Innovation challenge for creating cake in a spray can.

Their Spray Cake allows you to simply spray cake batter from a can, then cook it for one minute in a microwave – or a bit longer in a regular oven.
But, their batter supposedly cooks faster than normal batter because the spraying helps release air bubbles inside, which heat up quickly.(Newser)