### Banana Upside-Down Cake Recipe

#### Description
Indulge in this delightful Banana Upside-Down Cake, featuring a luscious layer of caramelized bananas atop a moist and fluffy cake. Perfect for dessert or a sweet breakfast treat, this recipe is sure to impress!

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#### Ingredients
– **3 ripe bananas**, sliced
– **1/2 cup unsalted butter**, melted
– **1 cup brown sugar**, packed
– **1 1/2 cups all-purpose flour**
– **1 teaspoon baking powder**
– **1/2 teaspoon baking soda**
– **1/4 teaspoon salt**
– **1/2 cup granulated sugar**
– **2 large eggs**
– **1 teaspoon vanilla extract**
– **1/2 cup buttermilk** (or milk with 1/2 tablespoon vinegar added)

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#### Instructions
1. **Preheat Oven**: Preheat your oven to 350°F (175°C).
2. **Prepare Caramel**: In a medium bowl, combine the melted butter and brown sugar until smooth. Pour this mixture into the bottom of a 9-inch round cake pan, spreading it evenly.
3. **Arrange Bananas**: Arrange the sliced bananas in a single layer over the brown sugar mixture.
4. **Mix Dry Ingredients**: In a large mixing bowl, whisk together the all-purpose flour, baking powder, baking soda, and salt.
5. **Beat Eggs and Sugar**: In another bowl, beat the granulated sugar and eggs together until light and fluffy (about 2-3 minutes).
6. **Add Vanilla**: Add the vanilla extract to the egg mixture and mix until combined.
7. **Combine Wet and Dry Ingredients**: Gradually add the dry ingredients to the wet ingredients, alternating with the buttermilk. Start with a third of the flour, then half of the buttermilk, followed by another third of the flour, the remaining buttermilk, and finally the last of the flour. Mix until just combined.
8. **Pour Batter**: Pour the batter over the arranged bananas in the cake pan, spreading it evenly.
9. **Bake**: Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.
10. **Cool**: Remove the cake from the oven and let it cool in the pan for about 10 minutes.
11. **Loosen Edges**: Run a knife around the edges of the cake to loosen it from the sides of the pan.
12. **Flip Cake**: Place a serving plate upside down over the cake pan and flip it over to release the cake onto the plate. If any bananas stick to the pan, carefully remove them and place them back on the cake.
13. **Serve**: Allow the cake to cool for a few minutes before slicing. Serve warm or at room temperature, optionally with whipped cream or vanilla ice cream.

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#### Notes
– For added flavor, consider mixing in chopped nuts like walnuts or pecans into the batter.
– Store leftovers in an airtight container at room temperature for up to 2 days or refrigerate for up to a week. Reheat slightly in the microwave for best flavor.

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#### Prep Time
15 minutes

#### Cook Time
30-35 minutes

#### Total Time
45-50 minutes

#### Yield
8 servings