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 until evenly blended.
03 - In a large bowl, beat eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract until smooth and fully combined.
04 - Add the dry mixture to the wet mixture, stirring gently just until incorporated without overmixing.
05 - Carefully fold in the grated zucchini and chocolate chips until evenly distributed throughout the batter.
06 - Pour batter into the prepared loaf pan, smoothing the top evenly. Bake for 50 to 55 minutes or until a toothpick inserted near the center emerges clean with a few melted chocolate streaks.
07 - Allow the baked bread to cool in the pan for 10 minutes, then transfer to a wire rack to cool completely before slicing.