Creating a Banana Upside Down Cake is quite simple when you follow these steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and prepare a 9-inch round cake pan by greasing it lightly.

2. Prepare the Topping: In a saucepan over medium heat, melt the butter and add brown sugar, stirring until the mixture is smooth. Remove from heat.

3. Arrange the Bananas: Pour the butter-sugar mixture into the prepared cake pan. Arrange the banana slices in a circular pattern over the sugar mixture.

4. Mix Dry Ingredients: In a larger bowl, combine flour, baking soda, and salt, whisking well to combine.

5. Cream Butter and Sugar: In another bowl, cream the unsalted butter and granulated sugar together until light and fluffy.

6. Add Eggs and Vanilla: Beat in the eggs, one at a time, followed by the vanilla extract, mixing until incorporated.

7. Combine Dry Ingredients and Buttermilk: Gradually add the flour mixture to the butter mixture, alternating with the buttermilk. Mix until just combined; do not over-mix.

8. Pour the Batter: Carefully pour the batter over the arranged bananas in the pan, spreading it evenly.

9. Bake the Cake: Place the cake in the preheated oven and bake for 40-45 minutes or until a toothpick inserted into the center comes out clean.

10. Cool the Cake: Allow the cake to cool in the pan for about 20 minutes before inverting it onto a serving platter.

11. Serve: Slice and serve the cake warm or at room temperature. Optionally, add whipped cream or ice cream for an extra treat.

By following these steps closely, you’ll craft a Banana Upside Down Cake that will be the star of your dessert table.