Preheat & Prep. To start, preheat oven temperature to 350 degrees F. Grease a loaf pan (mine is a 9″x5″ loaf pan) and line with parchment paper.
Combine Dry Ingredients. In a medium bowl, combine flour, baking soda, and salt. Whisk to combine well.
Combine Wet Ingredients. In a large bowl, combine eggs, oil, coconut sugar, cocoa powder, and vanilla. Stir or whisk to combine well.
Add Dry Ingredients to the Wet Ingredients and stir until almost fully combined, with just a few white floury patches left.
Fold In Zucchini & Chocolate Chips. Add grated zucchini and chocolate chips to the batter and fold in until evenly blended.
Bake Zucchini Bread. Pour batter into prepared loaf pan and sprinkle with remaining chocolate chips. Bake at 350 degrees F. for 50-60 minutes, or until a toothpick inserted in the center comes out clean with only a few moist crumbs. (A little melted chocolate chip is ok, but you don’t want any wet batter.)
Cool. Place pan on a cooling rack for about 15 minutes, then run a knife around the edges of the bread and transfer the bread out of the pan and onto a wire rack to finish cooling before slicing. (If you’ve used parchment, you can usually just lift the bread out of the pan using the parchment as “handles.”)
Store leftover chocolate zucchini bread in an airtight container at room temperature 2-3 days, or freeze up to 2 months in a freezer bag.