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Double Chocolate Zucchini Bread is the recipe I come back to every single zucchini season, and the one I get asked about more than almost anything else on this blog. It is fudgy, deeply chocolatey, loaded with chocolate chunks, and it requires zero effort when it comes to the zucchini. No squeezing, no blotting. Just shred and add. I think you are going to love it.

This is not your average zucchini bread. The combination of cocoa powder, semisweet chocolate chips, and chopped dark chocolate gives you double (honestly triple) chocolate in every slice. And if you add the espresso powder, which I strongly recommend even if you are not a coffee person, the chocolate flavor goes up another level entirely. It is one of those recipes that tastes like it took a lot more effort than it actually did.

If you love baking chocolate desserts, browse my full brownie recipes guide for more fudgy ideas.

Double Chocolate Zucchini Bread recipe cut in slices

Let’s Chit Chat!

I will be honest with you. The first time I made chocolate zucchini bread, I was skeptical. I am a huge chocolate person and the idea of adding a vegetable to something I consider a dessert felt like it had potential to go very wrong. But zucchini season is relentless, and at some point you have to do something with all that zucchini beyond sauteing it for the fifth time.So I made this. And I tested it until it was absolute perfection! It tastes like a bakery chocolate loaf with zero evidence of a vegetable anywhere. The texture is fudgy. The flavor is deep. And it has become one of this blog’s fan favorites every single summer.If you already love baking with zucchini, you should also try my classic Zucchini Bread Recipe for a totally different but equally delicious direction.

Ingredients on the counter including cocoa powder chocolate chips and shredded zucchini

Ingredients for This Double Chocolate Zucchini Bread Recipe

Here are the ingredients you will need to make this double chocolate chip zucchini bread. Make sure to scroll down to the recipe card at the bottom of the page for the detailed ingredient measurements. 

  • All-purpose Flour: is the base of this bread that is mixed with the zucchini.
  • Unsweetened Cocoa Powder: gives the bread its deep chocolate flavor.
  • Baking Soda and Baking Powder: These leavening agents help the batter rise and make it airy.
  • Salt: balances out the sweetness and enhances the other flavors as well.
  • Espresso Powder (optional): The flavor of chocolate is heightened when coffee is added to it.
  • Large Eggs: help with creaminess and structure.
  • Vegetable Oil or Melted Coconut Oil: to add moisture and give it a tender crumb.
  • Greek Yogurt or Sour Cream: either works here. Greek yogurt adds a slight tang and keeps the crumb incredibly moist. It is one of the reasons this chocolate zucchini bread with Greek yogurt turns out so tender every time.
  • Granulated Sugar: sweetens the batter.
  • Vanilla Extractcomplements the chocolate flavor and makes it stronger.
  • Shredded Zucchini: You will need about 2 medium zucchini. (no need to blot)
  • Semi-sweet Chocolate Chips: add a nice chocolate flavor.
  • Chopped Dark Chocolate: or more chocolate chips for topping.

How to Make This Double Chocolate Zucchini Bread

This is how you can make this chocolate chocolate chip zucchini bread. Make sure to scroll down to the recipe card at the end of this post for the oven temp, bake time, and full step-by-step instructions! 

  1. Preheat your oven and grease a 8.5×4.5-inch loaf pan and line it with parchment paper, leaving an overhang on the sides of the parchment paper for easy removal.
  2. In a medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder. Set aside.
  3. In a large bowl, whisk the eggs, vegetable oil, greek yogurt, granulated sugar, and vanilla extract, and mix until smooth and well combined.
  1. Stir in the grated zucchini until evenly distributed.
  2. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to over-mix.
  3. Fold in the semisweet chocolate chips, ensuring they are evenly distributed throughout the batter.
  1. Pour the batter into the prepared loaf pan, smoothing the top with a spatula. Top the loaf with more chocolate chips or chunks.
  2. Bake until a toothpick inserted into the center of the loaf comes out with a few moist crumbs. The top should look set and slightly cracked.
  3. Allow the zucchini bread to cool in the pan for about 15 minutes, then use the parchment paper overhang to lift it out and place it on a wire rack to cool completely to room temperature.
  4. Slice and enjoy your extra chocolatey, extra fudgy double chocolate zucchini bread!

Why You Will Love This Recipe

  • This easy recipe only requires a few simple ingredients that you can easily find at any grocery store.
  • It’s a great way to use up your leftover zucchini, and once you try it, it will quickly become your favorite way!
  • There’s so much melted chocolate flavor that you’ll feel like you’re eating a lava cake like the ones you get from restaurants.
  • Switch up your normal zucchini bread routine and make this delicious flavor instead.

Frequently Asked Questions – FAQ

How do I store leftover zucchini bread?

Store the bread in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate it for up to a week or freeze it for up to 3 months. If you do choose to freeze it, wrap it in plastic wrap and aluminum foil first to keep out any air and prevent freezer burn. Thaw frozen bread at room temperature before serving.

Can I taste the zucchini in the bread? 

No, you won’t be able to taste the zucchini. It adds moisture and a tender texture to the bread without affecting the chocolate flavor.

Do I have to use espresso powder?

I know coffee isn’t for everyone but trust me you will not taste the coffee at all! It is there to help enhance the chocolate flavor and make it taste much stronger! You can omit it, but I definitely recommend using it to really help all the chocolate flavors shine.

Can I make muffins instead of a loaf? 

Yes! Use the same batter and divide it evenly between a lined standard 12-cup muffin tin. Bake at 350F for 18 to 22 minutes, or until a toothpick inserted into the center of a muffin comes out with just a few moist crumbs. Do not overbake. The tops should look set and not glossy.

Do you need to squeeze the moisture out of the zucchini?

No, and that is actually the point. The moisture in the shredded zucchini is what makes this double chocolate zucchini bread so fudgy. Just shred the zucchini and add it straight to the batter without blotting. I tested it both ways and the unblotted version wins every time.

Can I add walnuts or pecans?

Yes! Fold in half a cup of chopped walnuts or pecans along with the chocolate chips. They add a nice crunch and work really well with the dark chocolate flavor. Just make sure they are roughly chopped so they distribute evenly through the loaf.

Double Chocolate Zucchini Bread recipe cut in slices
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Double Chocolate Zucchini Bread Recipe

This double chocolate zucchini bread is fudgy, loaded with chocolate chips and dark chocolate chunks, and uses shredded zucchini for the most incredibly moist texture. No squeezing required.
Prep: 10 minutes
Cook: 50 minutes
Total: 1 hour
Servings: 12 servings
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Ingredients 
 

  • 1 1/2 cups all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 teaspoon espresso powder optional
  • 2 large eggs
  • 1/3 cup vegetable oil or melted coconut oil
  • 1/4 cup greek yogurt or sourcream
  • 1 cup granulated sugar
  • 2 teaspoons vanilla extract
  • 2 cups shredded zucchini about 2 medium zucchinis ( no need to blot)
  • 1 cup semisweet chocolate chips
  • 3/4 cup chopped dark chocolate or more semi sweet chocolate chips more for topping

Instructions 

  • Preheat your oven to 350°F. Grease a 8.5-4.5-inch loaf pan and line it with parchment paper, leaving an overhang on the sides for easy removal.
  • In a medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder. Set aside
    1 1/2 cups all-purpose flour, 1/2 cup unsweetened cocoa powder, 1 teaspoon baking soda, 1/2 teaspoon baking powder, 1 teaspoon espresso powder, 1/2 teaspoon salt
  • In a large bowl, whisk the eggs, the vegetable oil, greek yogurt, granulated sugar, and vanilla extract, and mix until smooth and well combined.
    2 large eggs, 1/3 cup vegetable oil, 1/4 cup greek yogurt, 1 cup granulated sugar, 2 teaspoons vanilla extract
  • Stir in the shredded zucchini until combined.
    2 cups shredded zucchini
  • Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
  • Fold in the semisweet chocolate chips, ensuring they are evenly distributed throughout the batter.
    1 cup semisweet chocolate chips
  • Pour the batter into the prepared loaf pan, smoothing the top with a spatula. Top with with the dark chocolate chunks.
    3/4 cup chopped dark chocolate or more semi sweet chocolate chips
  • Bake for 55 to 70 minutes, checking for doneness starting at 55 minutes. A toothpick inserted into the center should come out with just a few moist crumbs. The top should look set and slightly cracked
  • Allow the zucchini bread to cool in the pan for about 15 minutes, then use the parchment paper overhang to lift it out and place it on a wire rack to cool completely.
  • Slice and enjoy your extra chocolatey, extra fudgy double chocolate zucchini bread!

Notes

Instructions say 60-70 min. Add a card note: ‘Start checking at 55 minutes. Every oven is different
Muffin option: Fill a lined 12-cup muffin tin and bake at 350F for 18 to 22 minutes.
Storage: Room temp up to 3 days, fridge up to 1 week, freezer up to 3 months. Wrap tightly in plastic + foil before freezing.

Nutrition

Calories: 332Calories | Carbohydrates: 43g | Protein: 5g | Fat: 16g | Saturated Fat: 7g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 4g | Trans Fat: 0.1g | Cholesterol: 29mg | Sodium: 224mg | Potassium: 283mg | Fiber: 4g | Sugar: 25g | Vitamin A: 91IU | Vitamin C: 4mg | Calcium: 44mg | Iron: 3mg

Nutrition information is automatically calculated, so should only be used as an approximation.

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About Chahinez Tabet Aoul

Chahinez Tabet Aoul is the recipe developer, photographer, and writer behind Lifestyle of a Foodie and Simple Copycat Recipes. Based in Las Vegas, Nevada, Chahinez is known for creating approachable, high-reward recipes that feel like they came straight from your favorite restaurant. Only easier, more fun, and made right a thome!

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