Baking your Banana Upside Down Cake is simpler than you might think. Follow these straightforward steps to create your masterpiece:

1. Preheat the oven: Set your oven to 350°F (175°C) and grease a 9-inch round cake pan.
2. Prepare the Banana Layer: In a saucepan, melt the butter over medium heat. Stir in brown sugar until dissolved. Pour this mixture into the bottom of the prepared pan.
3. Slice the Bananas: Cut the ripe bananas into thick slices and arrange them over the brown sugar mixture in the pan.
4. Combine Dry Ingredients: In a bowl, whisk together the flour, baking soda, and salt. Set aside.
5. Mix Wet Ingredients: In another bowl, cream the granulated sugar and softened butter together until light and fluffy. Add the eggs one at a time and beat well. Stir in vanilla extract.
6. Combine Flours and Buttermilk: Gradually alternate adding the dry ingredients and buttermilk to the creamed mixture. Mix until just combined.
7. Pour Batter: Carefully pour the batter over the banana layer in the prepared pan.
8. Bake: Place the pan in the oven and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean.
9. Cool the Cake: Once done, remove from the oven and let the cake cool for about 15 minutes.
10. Invert the Cake: Carefully run a knife around the edge to loosen it, then invert the cake onto a serving plate, allowing the caramelized bananas to be on top.

Following these steps will lead you to a moist, flavorful Banana Upside Down Cake that will be a hit with everyone.