Creating the Banana Upside Down Cake is a breeze when you follow these straightforward steps:

1. Preheat the oven: Set your oven to 350°F (175°C). Grease a round cake pan (about 9 inches in diameter).
2. Prepare the Topping: In a saucepan, melt the butter over medium heat. Stir in the brown sugar and cook until bubbly. Pour this mixture into the bottom of the prepared cake pan.
3. Arrange Bananas: Lay the sliced bananas over the brown sugar mixture in a single layer.
4. Mix Dry Ingredients: In a mixing bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt until well combined.
5. Combine Wet Ingredients: In another bowl, whisk together the eggs, milk, and vanilla extract until fully blended.
6. Combine Mixtures: Gradually add the wet ingredients into the dry ingredients, mixing until smooth and well combined.
7. Pour Batter: Gently pour the batter over the bananas and brown sugar in the cake pan, spreading evenly.
8. Bake: Place the cake into the preheated oven and bake for 40-45 minutes, or until a toothpick inserted in the center comes out clean.
9. Cool: Once baked, remove the cake from the oven and let it cool in the pan for about 10-15 minutes.
10. Invert the Cake: Carefully invert the cake onto a serving plate. Tap the pan gently to release the cake.

These clear steps will guide you towards creating a delicious Banana Upside Down Cake with confidence and ease.