Blueberry Upside-down Cake Tweet Pin It A Blueberry Upside-down Cake for when you have an abundance of blueberries. A thick layer of blueberries, fresh or frozen work equally well, shine against a lovely vanilla cinnamon cake. Other Cake Recipes You Might Like Cranberry Upside-down CakeUpside-down Plum CakeBanana Upside-down Cake Continue Reading 0