Make the flax egg. In a small bowl combine the ground flax and water, stir and set aside.
Make the vegan buttermilk. In a large measuring cup or bowl measure 1 3/4 cup homemade almond milk, add 1 teaspoon apple cider vinegar and 1 teaspoon pure vanilla extract, stir and set aside.
In a large bowl combine and stir the flour, baking powder, salt, sugar, and cinnamon.
Add flax eggs and buttermilk to dry ingredients, while mixing add melted coconut oil. Stir until just combined, set aside and allow to thicken.
Add batter to waffle iron, add chocolate chips as desired, enjoy.