Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large mixing bowl, whisk together the almond flour, protein powder, coconut flour, baking soda, cream of tartar, and salt.

In a separate bowl, combine the melted coconut oil, syrup, egg, and vanilla extract until emulsified.

Incorporate the dry ingredients into the wet ingredients using a spatula until a thick dough forms.

In a small bowl, mix the granulated sweetener and ground cinnamon to create the coating.

Portion the dough into 12 equal-sized balls, approximately 1 tablespoon each.

Roll each ball in the cinnamon-sweetener mixture until evenly coated.

Place the balls on the prepared baking sheet and flatten slightly with the palm of your hand.

Bake for 8 to 10 minutes until the edges are firm but the centers remain slightly soft.

Remove from oven and allow to cool on the baking sheet for 10 minutes to set before transferring to a wire rack.