Preheat oven to 180°c (fan forced) and line an 8x8 baking dish.
In a bowl combine mashed banana, peanut butter, maple syrup and almond milk. Add in the flour, cacao powder and mix until combined. Finally, fold in dark chocolate chips.
Transfer mixture to the lined tray and bake for 20 minutes or until cooked.
Let cool, slice up and enjoy!