Step 1: Preheat your oven to 350°F (175°C). Grease and flour a 9×5-inch loaf pan, or line with parchment paper, leaving an overhang on the sides for easy lifting.
Step 2: In a large bowl, whisk together the dry ingredients: all-purpose flour, granulated sugar, light brown sugar (packed), ground cinnamon, ground nutmeg, ground ginger, baking soda, baking powder, and salt. Make sure there are no lumps of brown sugar.
Step 3: In a separate medium bowl, whisk together the wet ingredients: eggs, vegetable oil, and vanilla extract.
Step 4: Pour the wet ingredients into the dry ingredients. Mix with a spatula or wooden spoon until just combined. Be careful not to overmix, as this can lead to a tough bread. A few streaks of flour are okay.
Step 5: Gently fold in the squeezed grated zucchini. If adding any optional mix-ins like chocolate chips or walnuts, fold them in now too.
Step 6: Pour the batter into the prepared loaf pan and spread it evenly. You can sprinkle a little extra cinnamon sugar on top for a beautiful crust, if desired.
Step 7: Bake for 50-60 minutes, or until a wooden skewer or toothpick inserted into the center of the loaf comes out clean. The top should be golden brown and the edges pulling away slightly from the pan.
Step 8: Remove the pan from the oven and let it cool on a wire rack for 10-15 minutes before carefully lifting the bread out of the pan or inverting it onto the rack.
Step 9: Allow the zucchini bread to cool completely on the wire rack before slicing and serving. Store any leftovers in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to a week. For longer storage, slices can be individually wrapped and frozen for up to 3 months.