In a large bowl, cream together the sugar, oil, egg, and vanilla. Add in the shredded zucchini. In another bowl, sift together the cocoa powder, salt, baking powder, and baking soda. Add the dry mixture into your large bowl and stir well. Do not leave any lumps.

Pour the batter into a greased bread pan and bake at 350 degrees for 45 to 50 minutes or until a toothpick comes out clean. For a fun touch you could also add 1/4 cup of mini chocolate chips into the batter before pouring into the loaf pan!