Chocolate Banana Cake is a lightened up chocolate cake made WITHOUT butter or oil. A secret ingredient makes this cake extra chocolate-y. A must try! Chocolate Banana Cake. Oh, man. This is a good one. And with no butter, no oil, and a no refined sugar option, I think we can say safely this cake is good for you, too. Or, ya know, not that bad for you. Whichever! Let me start by saying I don't even like chocolate cake that much. I know - kind of weird, right? Because how could ...