Preheat oven to 325F and combine the flour, sugar, baking soda, baking powder, salt, cinnamon and optional spices. Mix in the eggs, oil, vanilla and zucchini.
Grease a loaf pan and pour in the zucchini batter. Bake for 50-60 minutes. Insert a toothpick at 50 minutes, and if it comes out clean it’s done. If not, continue to bake until about 60 minutes or until a toothpick comes out clean.