Preheat the oven to 350 degrees.
In a mixing bowl, Mash the banana, nut butter & sugar using a fork or potato masher
Mix in the vanilla, flax egg, milk and mix well.
Add in the remaining dry ingredients (flour, oats, baking powder, salt, cinnamon) and stir to combine.
Line the pan with parchment paper or grease with oil.
Bake for approximately 15-20 minutes until cooked through.
Let cool slightly and enjoy warm right away or keep in an airtight container for up to a we