This spectacular sweet is a flavorful spin on upside down cake. The cake is spiced with ground ginger and cinnamon and has a molasses flavor from the dark brown sugar. It's wonderfully tender thanks to the butter and eggs, too. But what sets this cake apart from the crowd is the caramel that's also made from butter and sugar and which lines the bottom of the pan, and then the sliced bananas that are fanned out on top of that before the batter is added.