In a medium bowl, mash banana well. Add in eggs and whisk lightly. Add milk, vanilla, maple, oil and cinnamon and stir well to combine. In a small bowl, combine baking powder, flour and sea salt and stir well.
Transfer flour a bit at a time and stir to combine with liquid ingredients. Fold in chopped nuts if desired. Allow to sit for about 5-10 minutes.
On a skillet or desired pan, pour batter to make desired size pancakes. Allow to cook until bubbles form all round the edges. Flip and cook for another 2-3 minutes. Serve immediately with desired fixings!