First, make your flax egg. Combine the ground flaxseed with water, and set aside for 10 minutes, until thickened. Then, preheat the oven to 350F and line a 12-hole muffin tin with liners. Set aside.
In a large bowl, add all of the wet ingredients and stir. Then, in the same bowl, fold in the dry ingredients. Gently stir until a batter is formed. Fold in the chocolate chips.
Bake for 20 to 23 minutes, until a toothpick inserted into the middle of the muffins comes out clean. Allow to cool in a pan for five minutes, before transferring to a cooling rack. Store in a sealed container on the counter for up to four days.
