Preheat the oven to 350º F. Line a muffin tin with parchment paper liners and set aside.
In a large mixing bowl, add almond flour, coconut flour, collagen powder, spices, baking powder, baking soda and salt. Whisk the ingredients together to break up any clumps in the flours.
In another large mixing bowl, combine the pumpkin, monk fruit sweetener, eggs, and coconut oil. Whisk to combine. Using room temperature eggs and slightly heating the coconut oil will help keep the batter thin to make beautiful muffins.
Add the dry ingredients into the wet, and fold together. If using, fold in the optional nuts, seeds, or chocolate chips.
Divide the batter between 12 muffin papers in the prepared pan. I like to use a wet finger to smooth the batter to give the muffins a nicer appearance after being baked.
Bake the muffins for 18-21 minutes, or until the centers have just set. Try not to over bake these muffins.
Allow the muffins to cool for about 10 minutes before serving. These are delicious hot or cold
Store leftovers in the refrigerator for up to 5 days, or in the freezer for up to 3 months, in an air tight container.