Step One: Get an Angel Food cake mix and a can of crushed pineapple. (Shelly insisted I get the Duncan Hines brand. I really don't know if that's truly necessary, but not having made it before, who was I to argue?)
Step Two: Spray a pan with non-stick spray and preheat oven to 350.
Step Three: Combine the pineapple and cake mix. Stir well. Bake for 30 - 40 minutes, or until the top is nicely browned.
It ain't fancy, but if you Want Cake Now, this works.