Chocolate zucchini bread takes the moist, tender texture of classic zucchini bread and adds a deep chocolate flavor, making it taste more like dessert while still being simple enough for a weekday breakfast or snack. Grated zucchini blends seamlessly into the batter, keeping the loaf incredibly moist without adding any detectable vegetable flavor — just rich, chocolatey bread with a tender crumb.
Chocolate Zucchini Bread vs. Zucchini Brownies
They might sound similar, but this bread is meant to be sliced like a loaf, with a more bread-like (rather than fudgy) texture, less sugar overall, and a less dense crumb than brownies. It’s a great option if you want something a little less indulgent than brownies but still craving chocolate.
Ingredients
Wet ingredients
- 2 cups grated zucchini (about 1 medium-large zucchini), excess moisture squeezed out
- 2 large eggs
- ½ cup vegetable oil (or melted coconut oil)
- ½ cup granulated sugar
- ½ cup packed brown sugar
- 1 teaspoon vanilla extract
Dry ingredients
- 1 ¾ cups all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ½ teaspoon salt
- ½ teaspoon ground cinnamon (optional)
Mix-ins
- ½ cup semi-sweet chocolate chips, plus extra for topping
- ½ cup chopped walnuts (optional)
Equipment
- A box grater
- A 9×5-inch loaf pan
- Two mixing bowls
- A whisk and spatula
Instructions
Step 1: Prep the zucchini
Wash and trim the zucchini, then grate it using the large holes of a box grater. Place the grated zucchini on a clean kitchen towel or between paper towels and squeeze out as much liquid as possible — this step keeps the bread from turning dense or soggy.
Step 2: Preheat and prep the pan
Preheat your oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line it with parchment paper for easy removal.
Step 3: Mix the wet ingredients
In a large bowl, whisk together the eggs, vegetable oil, granulated sugar, brown sugar, and vanilla extract until smooth. Fold in the squeezed, grated zucchini.
Step 4: Mix the dry ingredients
In a separate bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and cinnamon (if using).
Step 5: Combine
Add the dry ingredients to the wet ingredients in two batches, folding gently with a spatula just until no streaks of flour remain. Fold in the chocolate chips and walnuts, if using.
Step 6: Bake
Pour the batter into the prepared loaf pan and smooth the top. Sprinkle a few extra chocolate chips over the top, if desired. Bake for 50-60 minutes, checking at the 50-minute mark — the bread is done when a toothpick inserted into the center comes out clean or with a few moist crumbs (melted chocolate chips can make this tricky, so check in a spot without chips). Tent with foil if the top browns too quickly.
Step 7: Cool
Let the bread cool in the pan for about 10-15 minutes, then transfer it to a wire rack to cool completely before slicing.
Tips for the Best Chocolate Zucchini Bread
- Don’t skip squeezing the zucchini — it’s the biggest factor in whether the loaf turns out moist versus dense.
- Use good-quality cocoa powder for the richest chocolate flavor.
- Don’t overbake — pull it as soon as a toothpick comes out clean or with a few moist crumbs, since overbaking can dry it out.
- Add espresso powder (½ teaspoon) to the dry ingredients to deepen the chocolate flavor without adding a coffee taste.
Storage
Store at room temperature in an airtight container for up to 2 days, or in the refrigerator for up to a week. Wrap tightly and freeze for up to 3 months, thawing at room temperature before serving.
Final Thoughts
Chocolate zucchini bread is a great way to use up extra zucchini while getting a rich, chocolatey loaf that works for breakfast, snacking, or dessert. It’s moist enough to feel indulgent, but still simple enough to bake any day of the week.
