Then butter and lightly flour (tap out any excess) two 9x5 loaf pans and line with parchment paper..
In a large bowl, sift the flour, cocoa, cinnamon, baking soda and powder. Once sifted measure and add in the kosher salt.
In a separate bowl whisk together the eggs, applesauce, oil, sugar and vanilla. Add in the two cups of grated zucchini. Pour this into the bowl with the dry ingredients, stir until just about incorporated.
Toss the chocolate chips with a teaspoon of flour {optional} before adding them into the zucchini bread batter. Stir a few times before dividing the chocolate zucchini bread batter among the two prepared pans. About 3 cups per pan.
Bake in preheated oven for 40-45 minutes or until a tester comes back with a few crumbs still attached.
Allow zucchini bread to cool completely before removing and slicing.