Preheat waffle iron to desired temperature. I prefer crispier waffles.
Using a wire whisk, mix together eggs, coconut oil (or melted butter), milk, maple syrup and sea salt.
Continuing to whisk, add the baking powder and coconut flour until thoroughly mixed. Add the cinnamon, flax and vanilla. Stir to combine.
Add blueberries and stir gently.
Spray waffle iron with generous amount of organic cooking spray.
Spoon 4-5 tablespoons of batter onto waffle iron and close until shut.
Cook according to the waffle iron's instructions.
Remove from waffle iron and place on wire rack until ready to eat.
Top with additional fresh blueberries, powdered sugar or 100% maple syrup if desired.