Preheat oven to 350.
Line a 9x9 round cake pan or 8x8 baking dish with parchment paper.
Oil the inside of the pan, so the parchment sticks.
In a medium bowl, combine the dry ingredients and set aside.
Next, in a blender, add all the wet ingredients, including the banana and eggs, and blend until smooth (about one minute).
Pour blender contents into the bowl with dry ingredients.
Stir well and then pour batter into your baking dish.
Bake 22-23 minutes.
Let cool and then frost with your favorite chocolate frosting and shaved chocolate.
Cut into squares and serve.
Store in an air tight container in the fridge.ENJOY!