Set oven to 350F.
Using a fine grater, grate a zucchini over a cheesecloth or heavy duty paper towel. Squeeze out all of the excess liquid, a VERY important step. Set aside.
In a bowl, mix together the dry ingredients.
In a separate bowl, mix together the wet ingredients. Then fold in the dry ingredients and the zucchini. Fold everything together until well mixed. Fold in the chocolate chips but reserve a few for the top of the brownies.
Line a square baking dish with parchment paper, then pour in the batter. Sprinkle the remaining chocolate chips on top.
Bake for about 22 – 25 minutes, or until you can pierce the brownies with a toothpick and it comes out clean.
Let the brownies cool for about 10-15 minutes before slicing and devouring!