Preheat the oven to 350°F. Lightly grease a donut pan for 6 donuts.
In a large bowl, whisk together almond flour, protein powder, cinnamon, baking powder and salt.
To the bowl, add the maple syrup, egg, egg white, vanilla, and melted/cooled coconut oil. Stir until a batter forms, making sure to press out any lumps.
Place the tip of your piping bag into a large glass then fold the top of the bag over the rim of the glass. Spoon all of the batter into the piping bag.
Lift the piping bag out of the glass then carefully pipe the batter into the greased donut pan. Bake for 10-minutes, until firm and golden on the edges. Allow to cool before removing from pan. Once the donuts are completely cooled, they should be firm enough to handle.
Place the cookie butter in a small cereal bowl. Microwave for 15-30 seconds, until melted so that it has a thinner texture. Dip the top of each donut in the cookie butter so that it forms a glaze. Set aside. Enjoy immediately or store in a sealed container in the refrigerator for up to 5 days.