The easiest way to thaw frozen bananas is by placing them (with the peels still on) in a bowl of hot water, or lightly stream hot water over the bananas until they thaw evenly. The peels on the bananas darken once they are frozen, but don't worry, the inside is not affected! When you peel your frozen bananas, save the banana juice to add extra banana flavor to your cake (as described within the recipe card).