Directions

1. Position an oven rack in the center of the oven and preheat the oven to 325ºF/160ºC/gas 3. Spray a 9-in/23-cm cake pan generously with baking spray. Line the bottom of the pan with a circle of parchment paper. Spray the parchment paper. Set aside.
2. Put the chopped chocolate in a medium heatproof bowl and set the bowl over a pan of barely simmering water. Warm the chocolate, stirring frequently, just until it melts. Remove the bowl from the heat, let cool for several minutes. Mash the bananas with a fork, and then stir them into the melted chocolate. Set aside.
3. Place the butter and brown sugar in the bowl of your KitchenAid® Stand Mixer fitted with the flat beater. Attach the KitchenAid® Sifter + Scale Attachment to your mixer. Close the ingredient valve. Weigh the flour, cocoa, baking powder, and salt in the ingredient hopper, taring the scale between ingredients.