Drain excess liquid from zucchini. Place zucchini in a sieve and press out liquid with back of a spoon. Alternatively, you can also place grated zucchini in a cheese cloth or paper towel and squeeze moisture out. Set zucchini aside.
Preheat oven to 350F and grease a bread loaf pan.
Sift flour, baking powder, baking soda, salt and cinnamon into a medium size bowl. Whisk until evenly incorporated. Set aside.
In large bowl, with an electric mixer, mix oil, vanilla, eggs and syrup on medium speed until incorporated, about 1 minute. Lower the mixer's speed to low and slowly add in dry ingredients. Mix until incorporated, about 2 minutes. Using a spatula, stir in zucchini & carrots until evenly distributed.
Pour batter into greased bread loaf pan. This pan is generally 8 1/2" x 4 1/2" in size.
Bake in oven for 50-60 minutes or until tester (i.e. toothpick) inserted in center comes out clean. Cool for 20 minutes. Remove bread from pan and let cool some more.
Slice, top it with butter or nut butter, serve and enjoy!