Preheat the oven to 350 degrees. Place 12 muffin papers in a muffin tin.
In a meium size bowl, comebine the coconut flour, tapioca flour, ground cinnamon, and baking soda. Mix well with a whisk.
Once the dry ingredients are mixed, add the beaten eggs, applesauce, lemon juice, vanilla extract, an salt. Mix well into the dry ingredients. Add the mulberries at the end and fold.
Put the muffin batter in the 12 muffin papers and place in the oven and bake for 15-20 minutes or until golden brown. Once baked, remove from the oven and allow to cool before enjoying.