Super Moist Double Chocolate Zucchini Bread Recipe

This moist chocolate zucchini bread is pure happiness for chocoholics! With veggie goodness tucked inside, it’s a sneaky, delicious way to enjoy big chocolate flavor while adding a bit of green to your day.
Seriously, zucchini in a chocolate bread? It works wonders! I love baking this as an easy breakfast option or a cozy snack. The moistness in every bite is unbeatable. Plus, it’s the perfect reason to have chocolate any time you want! 😄
Thanks for stopping by! You’re about to bake a wonderfully rich, yet sneaky loaf that sneaks veggies into your chocolate fix. This moist chocolate zucchini bread delivers bold cocoa flavor from both cocoa powder in the batter and melty chocolate chips. The secret to its tender, ultra-moist crumb? Grated zucchini paired with a touch of sour cream or Greek yogurt. It’s a perfect fit for breakfast, afternoon munchies, or sharing at potlucks.
Below you’ll find a straightforward ingredient list with simple swaps, easy-to-follow step-by-step instructions for a classic 9×5-inch loaf, and tips to keep your bread moist and fluffy. Plus, I’ve included storage and freezing ideas so you can enjoy this tasty treat long after baking. This recipe is pretty forgiving and can be adapted with whole wheat or gluten-free flours, or jazzed up with nuts or different types of chocolate.
- Who it’s for: chocolate lovers wanting a slightly healthier indulgence.
- What you’ll get: an incredibly moist loaf packed with hidden veggies and gooey chocolate spots.
- Why it works: a smart mix of zucchini, creamy dairy, and gentle mixing builds a soft crumb.
Ready to get baking? Follow along with the recipe and tips to make moist chocolate zucchini bread that’s chocolatey and tender every time. 😄
Why This Bread Is Irresistible
This moist chocolate zucchini bread is a treat that blends rich chocolate flavor with a tender, moist texture and a dash of hidden veggies—ideal for those who want a chocolate fix but with a bit of goodness sneaked in. It’s a breeze to make, easy to swap ingredients, and works for breakfasts, snacks, or gatherings alike.
- Ultra-moist crumb from grated zucchini and creamy sour cream or Greek yogurt (see these Greek yogurt zucchini muffins for how tangy yogurt locks in moisture).
- Double the chocolate fun—cocoa in the batter plus melty chocolate chips throughout; for a grab-and-go version, make gluten-free double chocolate zucchini muffins.
- Hidden veggies sneak nutrition without skimping on taste.
- Super flexible—try whole wheat or gluten-free 1:1 flour blends, swap cocoa types, or add nuts.
- Make ahead or freeze to enjoy anytime, saving baking energy.
Ingredients and Smart Swaps

- 1 ½ cups all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ¼ teaspoon salt
- 2 large eggs
- 1 cup granulated sugar
- ½ cup brown sugar, packed
- ⅓ cup vegetable oil
- 1 teaspoon vanilla extract
- 1 ½ cups grated zucchini (about 1 medium zucchini, finely grated and moisture squeezed out)
- ½ cup sour cream or plain Greek yogurt
- 1 cup semisweet chocolate chips (plus extra for topping)
Mixing and Baking Directions
- Preheat oven to 350°F (175°C) and grease a 9×5-inch loaf pan or line with parchment.
- Grate zucchini very finely and squeeze out excess moisture with a towel.
- Whisk together all-purpose flour, unsweetened cocoa powder, baking soda, baking powder, and salt in a medium bowl.
- Beat eggs with granulated sugar and packed brown sugar until lighter in color and slightly fluffy (about 1–2 minutes).
- Stir in vegetable oil and vanilla extract until blended.

- Fold in sour cream or Greek yogurt and the squeezed grated zucchini until evenly combined.
- Gradually add the dry ingredients to the wet ingredients, folding gently just until combined (don’t overmix).
- Fold in most of the semisweet chocolate chips, reserving a handful to sprinkle on top.
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Pour batter into the prepared loaf pan, smooth the surface, and scatter reserved chocolate chips over the top.
- Bake at 350°F (175°C) for 55–65 minutes, testing at 55 minutes with a toothpick; it should come out with a few moist crumbs but no wet batter.
- Cool the bread in the pan for 10 minutes, then transfer to a wire rack and cool completely before slicing.
Baker’s Tricks for Extra Moisture
Getting the moist chocolate zucchini bread perfect means paying attention to a few key details beyond just the recipe. Here’s what I’ve learned works best:
- Grate the zucchini very finely and squeeze it well to remove excess water—it prevents sogginess but keeps moisture where it counts.
- Mix the batter just enough to combine ingredients; overmixing will lead to a dense, tough texture. If you’re new to quick breads, this one-bowl zucchini bread method shows exactly how far to mix.
- Start checking your bread near the 55-minute mark. It’s done when a toothpick comes out with a few moist crumbs but no wet batter (doneness cues for classic zucchini bread).
- Cool in the pan for 10 minutes before transferring to a wire rack. This keeps the loaf firming up gently without drying out.
Ways to Customize the Loaf
Yes! This recipe is really flexible. You can swap out all-purpose flour for whole wheat flour for a nuttier loaf, though it may be a bit denser.
Add chopped walnuts or pecans if you like some crunch. Toss in dried fruits or shredded coconut to play with flavors and texture—just keep your mix-ins close to the original volume of chocolate chips. If you love a nutty-chocolate twist, try our peanut butter chocolate chip zucchini bread.
No zucchini? No problem. Try grated carrots for a sweet, colorful twist, or mashed bananas for added moisture and a slightly different flavor. It’ll still be tasty and moist! For a carrot-forward bake that also uses whole wheat, check out these fluffy whole wheat carrot zucchini muffins.
Storage and Make-Ahead Tips
Store any leftover moist chocolate zucchini bread in an airtight container at room temperature for up to 3 days. If you want to keep it longer, wrap it tightly in plastic wrap and freeze for up to 3 months. Just thaw at room temperature before enjoying. Prefer grab-and-go portions? Our double chocolate zucchini muffins freeze and thaw just as well for quick breakfasts.
Answers to Common Questions
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Q: How do I keep my zucchini bread super moist?
A: Make sure to grate zucchini finely and squeeze out any extra water using a clean towel. Also, don’t overmix your batter. Check doneness with a toothpick—pull it out when a few moist crumbs stick to it, no raw batter. Cooling in the pan for 10 minutes before moving to a rack helps lock in moisture too.
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Q: Can I swap all-purpose flour for whole wheat or gluten-free flour?
A: Absolutely! Whole wheat will produce a denser loaf with a nutty punch and can swap 1:1 with all-purpose. For gluten-free, use a reliable 1:1 baking flour blend designed for gluten-free baking.
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Q: How should I store leftover zucchini bread?
A: Keep it in an airtight container on your counter for up to 3 days. For longer storage, wrap tightly and freeze up to 3 months. Thaw fully at room temperature before slicing.
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Q: Can I add nuts or other mix-ins?
A: For sure! Add up to a cup total of chopped nuts like walnuts or pecans, dried fruits, or even coconut. You can mix them in place of some chocolate chips or alongside them—if you’re craving a different flavor profile, our Moist Peanut Butter Zucchini Cake shows how well zucchini pairs with peanut butter. Just keep the total mix-in quantity about the same.
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Q: What if I don’t have zucchini? What can I use?
A: Grated carrots work beautifully for a sweeter touch and a pop of color. Mashed bananas are another tasty alternative, adding moisture and a hint of banana flavor—if you’re in the mood for a banana bake, try these Banana Chocolate Chip Yogurt Muffins. The texture and taste will vary slightly but remain delicious.
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Q: Can I make muffins instead of a loaf?
A: Yes! Spoon the batter into a lined muffin tin and bake at 350°F (175°C). Muffins will need about 18–25 minutes; start checking at 18 minutes and pull them out when a toothpick comes out with moist crumbs.
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Q: Can I reduce the sugar?
A: You can lower the sugar by up to 25%, but keep in mind sugar helps with texture and moisture. Reducing it may create a slightly firmer crumb and less sweetness.

A moist and rich chocolate zucchini bread with grated zucchini and sour cream or Greek yogurt for a tender crumb, loaded with cocoa powder and semisweet chocolate chips.
- Prep Time: 15 minutes
- Cook Time: 55-65 minutes
- Total Time: 1 hour 10-20 minutes
- Yield: 1 loaf (9x5 inch) 1x
- Category: Bread
Ingredients
- 1 ½ cups all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ¼ teaspoon salt
- 2 large eggs
- 1 cup granulated sugar
- ½ cup packed brown sugar
- ⅓ cup vegetable oil
- 1 teaspoon vanilla extract
- 1 ½ cups grated zucchini (about 1 medium zucchini, finely grated and squeezed to remove moisture)
- ½ cup sour cream or plain Greek yogurt
- 1 cup semisweet chocolate chips (plus extra for topping)
Instructions
- Preheat oven to 350°F (175°C) and grease a 9×5-inch loaf pan or line with parchment paper.
- Grate zucchini finely and squeeze out excess moisture with a towel.
- In a medium bowl, whisk together all-purpose flour, unsweetened cocoa powder, baking soda, baking powder, and salt.
- In another bowl, beat eggs with granulated sugar and packed brown sugar until lighter in color and slightly fluffy, about 1–2 minutes.
- Stir in vegetable oil and vanilla extract until blended.
- Fold in sour cream or Greek yogurt and the squeezed grated zucchini until evenly combined.
- Gradually add the dry ingredients to the wet ingredients, folding gently just until combined; avoid overmixing.
- Fold in most of the semisweet chocolate chips, reserving a handful for topping.
- Pour batter into prepared loaf pan, smooth the surface, and scatter reserved chocolate chips on top.
- Bake for 55–65 minutes, checking at 55 minutes with a toothpick; it should come out with a few moist crumbs but no wet batter.
- Cool bread in the pan for 10 minutes, then transfer to a wire rack and cool completely before slicing.
Notes
Grate zucchini very finely and squeeze out excess moisture to prevent sogginess but retain moisture within the bread., Do not overmix the batter to avoid a dense, tough texture., Check the bread starting at 55 minutes; it should be done when a toothpick comes out with moist crumbs but no raw batter., Cooling in the pan for 10 minutes before removing helps keep the loaf moist and firm., The recipe is flexible: whole wheat flour can be used for a nuttier, denser loaf., Add up to 1 cup total of chopped nuts, dried fruits, or shredded coconut as mix-ins with or instead of chocolate chips., Grated carrots or mashed bananas can be substituted for zucchini., The bread can be stored in an airtight container at room temperature for up to 3 days, or frozen tightly wrapped for up to 3 months., Sugar can be reduced up to 25%, but may affect texture and moisture., This batter can also be used to make muffins; bake muffins at 350°F (175°C) for 18–25 minutes, watching closely from 18 minutes onward.
Nutrition
- Serving Size: 1 slice
- Calories: Approximately 280 calories per serving
- Fat: 9 g per serving
- Carbohydrates: 45 g per serving
- Protein: 5 g per serving