Combine all dry ingredients together in a large bowl. Mix together with a fork.
In a separate mixing bowl, mash the bananas and add the top 6 ingredients. Mix together, then slowly mix in the bowl of dry ingredients. Mix until there are no streaks of white powder but avoid over mixing.
Line a muffin tin with silicon muffin liners. Fill each muffin well about ¾ of the way full. Bake for 35-40 minutes. You should be able to pierce a muffin with a toothpick and have it come out clean. The tops will appear dark from the espresso.
Paleo baking flour can be substituted for ALL the flour/starch in the recipe totaling to 1 ¾ cup.