01 - 
                Preheat the oven to 350°F (175°C). Grease a 9-inch round cake pan.
              
              
              
                02 - 
                In a saucepan over medium heat, melt the butter. Add the brown sugar and stir until well combined. Pour the mixture into the prepared cake pan.
              
              
              
                03 - 
                Arrange the banana slices and whole pecans over the brown sugar mixture in the cake pan.
              
              
              
                04 - 
                In a bowl, whisk together the flour, baking powder, baking soda, and salt.
              
              
              
                05 - 
                In another bowl, beat the granulated sugar with the eggs and vanilla extract until creamy. Alternately mix in the dry ingredients and buttermilk, starting and ending with the dry ingredients.
              
              
              
                06 - 
                Pour the batter over the bananas and pecans in the cake pan.
              
              
              
                07 - 
                Bake for 45-50 minutes, or until a toothpick inserted into the center comes out clean.
              
              
              
                08 - 
                Let the cake cool in the pan for 10 minutes before inverting it onto a serving plate, revealing the caramelized bananas and pecans on top.