Preheat your oven to 350 degrees and line your loaf pan with parchment paper, leaving paper on either side for easy removal. I used a 5x10 loaf pan. You can use other size loaf pans you will just have to adjust your baking time.
First, make your cinnamon streusel topping. In a small bowl combine almond flour, coconut sugar and cinnamon. Stir to combine then add in the coconut oil. Stir until you have a crumbly mixture and set aside.
In a medium bowl combine your dry ingredients: almond flour, tapioca flour, cinnamon, baking powder, baking soda and salt. Set aside.
In a large bowl combine the mashed banana, coconut sugar, coconut oil, eggs and vanilla with a whisk. Whisk until smooth and combined.
Pour the dry flour ingredients into the wet mixture and fold until combined.
Pour batter into your prepared loaf and top with the cinnamon streusel topping. Place pan in the preheated oven for 40 minutes. Let the bread cool, remove from the pan, slice, and enjoy!