Spray a 9 x 5 inch loaf pan with coconut oil or non-stick spray (bread is big so don't use a smaller sized pan)
Combine all dry ingredients and set aside.
In a separate bowl mash up bananas. Add in warm applesauce (premixed with baking powder), melted coconut oil, maple syrup, almond milk and vanilla and stir to combine.
Add wet ingredients to dry and stir until just combined.
Add in chocolate chips or nuts if desired.
Scoop batter into pan and bake for 55-60 mins.
Remove from oven and let cool for at least 30 mins before removing from pan and placing on a wire rack to cool completely.
Will keep in a sealed container on counter for up to 5 days.
*Or replace brown rice flour, oat flour, tapioca flour and potato starch with 2 1/4 cups + 2 T of regular all-purpose or whole wheat flour. **If using regular all-purpose or whole wheat omit xanthan gum