01 - Preheat the oven to 350°F. Grease a 9x5-inch loaf pan and line with parchment paper for easy removal.
02 - In a medium bowl, whisk together the flour, baking soda, baking powder, salt, and cinnamon until well blended.
03 - In a large bowl, beat the eggs, then add the vegetable oil, granulated sugar, brown sugar, and vanilla. Whisk until smooth and thoroughly combined.
04 - Add the dry ingredients to the wet ingredients and mix gently until just combined. Do not overmix to maintain a tender crumb.
05 - Fold in the shredded zucchini and chocolate chips with a spatula until evenly distributed throughout the batter.
06 - Pour the batter into the prepared loaf pan and smooth the top with a spatula for even baking.
07 - Bake for 50-55 minutes, or until a toothpick inserted into the center comes out clean or with just a few moist crumbs. Avoid testing areas with melted chocolate.
08 - Let cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.