Preheat oven to 180°C (350°F) and fold a brownie pan with parchment paper.
Mash 3 ripe bananas then add peanut butter and stir the mixture until smooth.
Sift in cocoa powder, give it a mix and transfer to the prepared brownie pan.
Bake in hot oven for 22 to 30 minutes – mine took 27 minutes. Let cool completely at room temperature before slicing.
