This healthy and easy recipe (with wheat-free and vegan options) makes an incredibly moist cake. It's from "A The Skinnygirl Dish: Easy Recipes for Your Naturally Thin Life", by Bethenny Frankel. If you want a chocolate glaze, use melted butter and omit the peanut butter. If you want a plain peanut butter glaze, omit the cocoa. You could also use a round or square cake pan.