1. Preheat the oven to 350 degrees. Grease and line a loaf pan with a parchment paper sling.
2. Whisk together the banana, eggs, coconut sugar, maple syrup, and coconut oil in a medium bowl. In a large bowl, whisk together the almond flour, gluten free flour, cinnamon, baking soda, and baking powder. Add the wet ingredients to the dry ingredients and stir to combine.
3. Pour the mixture into the prepared pan and top with the sliced banana. Bake for 50-60 minutes or until a toothpick inserted into the center comes out clean. Let cool in the baking pan for 10 minutes then transfer to a wire rack to cool completely.