Creating this delectable Banana Upside Down Cake is a joy! Follow these simple steps to make it perfectly:

1. Preheat Oven: Begin by preheating your oven to 350°F (175°C).
2. Prepare the Pan: In a 9-inch round cake pan, melt the butter and brown sugar together over low heat until dissolved. Remove from heat and let cool slightly.
3. Arrange Bananas: Slice the ripe bananas and arrange them in a single layer on top of the brown sugar mixture in the pan.
4. Mix Wet Ingredients: In a bowl, whisk together the granulated sugar, vegetable oil, eggs, and vanilla extract until smooth.
5. Combine Dry Ingredients: In another bowl, sift together the all-purpose flour, baking powder, baking soda, and salt.
6. Mix Ingredients: Gradually add the dry mixture into the wet ingredients, alternating with buttermilk. Mix until just combined; do not overmix.
7. Pour Batter: Gently spoon the cake batter over the bananas in the pan, spreading it evenly.
8. Bake: Place the pan in the oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool Slightly: Remove the cake from the oven and let it cool in the pan for about 10–15 minutes.
10. Invert: Carefully invert the cake onto a serving plate to release it from the pan. Allow it to cool to room temperature.

Follow these steps, and you’ll have an incredible Banana Upside Down Cake that is sure to impress!