Banana Pecan Upside-Down Bundt Cake

1. Preheat the oven to 350°F. 2. Generously spray a Bundt pan with baking spray, making sure to coat all the edges and crevices. 3. Add the pieces of butter to the bottom of the Bundt pan. Sprinkle the roughly chopped pecans evenly over the butter, then sprinkle the brown sugar on top. 4. Place the Bundt pan in the oven for about 5 minutes, just until the butter and brown sugar begin to melt. Carefully remove from the oven and set aside while you make the batter. 5. In a large bowl, mash the ripe bananas until mostly smooth. 6. Add the eggs, granulated sugar, brown sugar, vegetable oil, and vanilla extract. Whisk until well combined. 7. Add the flour, baking soda, baking powder, salt, and cinnamon. Mix just until combined, making sure not to overmix. 8. Carefully pour the batter over the pecan brown sugar topping and smooth out the top. 9. Bake for 50–55 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs. 10. Let the cake cool in the pan for 15–20 minutes, then carefully invert it onto a serving plate. 11. Allow it to cool slightly before slicing and serving.