In a large bowl, whisk together the coconut oil, eggs, banana, maple syrup, and vanilla extract.
Add the oat flour, baking soda and salt. Stir until well incorporated.
Grease or line a 12-cup muffin pan with silicone liners. Spoon 3-4 heaping tablespoons of batter into each cup.
Bake the cupcakes for 20-25 minutes, or until the tops are slightly browned and a toothpick comes out clean when inserted into the center of a muffin.
Allow to cool in the pan for 5 minutes, then cool the rest of the way on a cooling rack.
Frost with chilled Greek yogurt or any frosting you like.
Notes
*Make your own oat flour for this recipe by placing 2 cups whole rolled oats in a blender and blending until a coarse flour forms. You can purchase pre-made oat flour at many grocery stores and natural food markets or online. If you are gluten-free be sure to buy oats that are specifically labeled gluten-free.Skip the frosting and serve as muffins.Add sprinkles! I used dye-free rainbow sprinkles.