Preheat oven to 350.

Mash the banana with the butter, using a fork.

Add the egg and vanilla and combine well.

Add the coconut flour and continue mashing until a dough forms.

Pinch off tablespoon-sized pieces of dough and roll into balls.

Place on a parchment lined baking sheet and gently press with the palm of your hand to create a cookie shape.

Top with shredded coconut and bake for 12-15 minutes.

Makes about a dozen smallish cookies.