1. Mix oat flour with baking powder, cinnamon, and salt in a small bowl.
2. In another bowl, mash the banana with the brown sugar. Add egg, coconut milk and 1 tablespoon of the oil.
3. Fold flour mixture into banana mixture. Stir to combine (don't overmix).
4. Heat a cast-iron or other heavy skillet over medium heat. Brush lightly with the coconut oil (or cook the pancakes in butter). Phoebe and Cara recommend making a test pancake to see if the temperature of the skillet is correct. Clearly I should have followed their directions, as my pancakes got slightly burned from me overheating the pan. Make sure to lower the heat of the pan if the pancake(s) brown too quickly (on the other hand, if your pancake(s) don't flip easily, then your pan isn't hot enough).
5. Cook pancakes for 3-4 minutes on each side, until brown and cooked through. Top with butter, if you like, as well as sliced banana and maple syrup.