Preheat the oven to 350°F. Next wash the zucchini well, trim off the stem of the zucchini, then using the large holes on a box grater, grate the zucchini and set it to the side.
In a large bowl, whisk together the dry ingredients (flour, baking powder, baking soda, salt, and cinnamon) until well combined.
In a separate bowl, whisk together the wet ingredients (eggs, granulated sugar, brown sugar, applesauce, oil and vanilla extract) until well combined.
Add the grated zucchini to the bowl with the wet ingredients. Stir until combined.
Pour the wet ingredients into the same bowl as the dry ingredients. Stir together until just combined. Be careful not to overmix at this point.
Divide the batter between eight greased or lined muffin wells.
Bake the muffins for about 24 minutes or until golden brown and puffed in the center. Allow the muffins to cool for about 5 minutes, then carefully loosen the edges with a knife and transfer the muffins to a wire rack to finish cooling. Enjoy!