Preheat oven to 425 F.
In a small bowl, combine flax and water and allow to sit to thicken.
In a large mixing bowl, mix together all dry ingredients. Add in wet ingredients and stir. Then, add in flax and water mixture. Last, mix in chocolate chips.
Spoon into greased or lined muffin tin.
Bake 5 minutes at 425 then lower temperature to 350 and continue to bake an additional 15 minutes or until toothpick inserted into the middle comes out clean.