Preheat oven to 350 degrees. Grease 2 8-inch loaf pans or 1 9-inch loaf pan. Lower the racks on the oven so the top of the pan will be in the middle of the oven.
In a large mixing bowl, add in zucchini, sugar, oil, vanilla, and eggs. Using a spatula, mix until combined.
Add the flour on top, then the baking soda, baking powder, salt, cinnamon, and cloves. Give the spices a little stir to mix it through the flour. This will help the spices from clumping when you mix it with the wet ingredients.
Mix the dry ingredients into the wet ingredients with the spatula. Mix thoroughly so that you have a thick batter.
Add in nuts and give it a quick mix. I left the nuts out of mine.
Divide the batter into the two 8-inch loaf pans or pour all the batter into the 9-inch pan.
Place into the oven and bake the 8-inch loaves for 40-50 minutes or until done. Bake the 9-inch loaf for 1 hour and 20 minutes or until done. Use a tooth pick and insert it into the middle of the loaf. If it comes out clean, it's done!
Let it cool in the pan for 10-15 minutes. Run a knife along the sides of the loaf and turn it out onto a cooling rack to cool.
Once cooled, cut and serve. Try it with butter. Yum!