01 - Preheat oven to 350°F. Grease and flour a 9x5-inch loaf pan or line it with parchment paper.
02 - In a medium bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt.
03 - In a large bowl, beat eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract until smooth and fully blended.
04 - Add the dry mixture to the wet ingredients and stir gently just until combined.
05 - Carefully fold grated zucchini and chocolate chips into the batter, avoiding overmixing to maintain tenderness.
06 - Pour batter into prepared pan and level the surface with a spatula.
07 - Bake for 50 to 55 minutes, or until a toothpick inserted into the center comes out clean or with a few melted chocolate traces.
08 - Allow bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.