Line a muffin tin with parchment paper muffin cups, set aside.
In mixing bowl, thoroughly mix almond flour, tapioca flour, baking powder, and salt.
In a separate mixing bowl, mash the banana with a potato masher (or fork) until no clumps remain.
Mix with the mashed banana: eggs, apple sauce, and vanilla.
Mix the banana mixture into the dry ingredients mixture and stir well.
Fill each muffin cup to a little over halfway.
Option to top each muffin with 2 nuts each.
Bake at 350° for about 15 min.
Test the middle muffin for doneness by placing a knife or a toothpick into the center. If the toothpick or knife comes out with a wet batter, cook an additional 2 minutes and test again. If the toothpick or knife comes out clean, remove the muffins from the oven.
Remove the ovens from the muffin tin immediately to avoid burning the outsides of the muffins.
Notes
To make banana bread: line a bread loaf pan with parchment paper, set aside. Triple the recipe and cook at 350 degrees for about 1 hour.