This mango upside-down cake recipe is a fun and creative way to use fresh mangoes. The cake is baked with sliced mangoes on top, which caramelize and create a sweet, sticky topping. The cake itself is moist, fluffy, and has a subtle mango flavor. To make this cake, you will need all-purpose flour, baking powder, salt, sugar, eggs, oil, mangoes, and vanilla extract. Arrange the sliced mangoes on the bottom of a greased cake pan. Mix the dry ingredients in one bowl and the wet ingredients in another. Combine the two mixtures and pour the batter over the mangoes. Bake for 30-35 minutes or until a toothpick inserted in the center comes out clean. Let the cake cool before flipping it over onto a serving plate.