
This decadent chocolate zucchini bread transforms garden vegetables into a dessert-like treat that even veggie-skeptics will devour. The rich chocolate flavor completely masks the zucchini while benefiting from its moisture-adding properties for an irresistibly tender loaf.
I first created this bread during a summer when our garden produced more zucchini than we could possibly eat. My chocolate-loving husband claimed he could detect the vegetables, until I served it to him without mentioning the secret ingredient and he devoured three slices thinking it was just chocolate bread.
Ingredients
- All purpose flour: provides the perfect structure while keeping the crumb tender
- Dutch process cocoa: gives a deeper chocolate flavor than regular cocoa but either works beautifully
- Baking soda: creates the perfect rise when activated by the moisture in zucchini
- Sea salt: enhances all the flavors especially the chocolate notes
- Room temperature eggs: blend more evenly into the batter for proper emulsification
- Melted butter: adds richness that vegetable oil alone cannot provide
- Oil: keeps the bread moist for days longer than recipes using only butter
- Brown sugar: provides more moisture and caramel notes than white sugar
- Pure vanilla extract: balances and enhances the chocolate flavor
- Shredded zucchini: disappears completely while adding incredible moisture
- Semisweet chocolate chips: create pockets of melty goodness throughout
Step-by-Step Instructions
- Prepare Your Equipment:
- Heat your oven to 350°F and thoroughly grease your loaf pan ensuring you get into all corners and crevices to prevent sticking which can ruin a beautiful loaf after baking.
- Combine Dry Ingredients:
- Whisk together flour cocoa powder baking soda and salt ensuring there are absolutely no cocoa lumps which would create bitter spots in your finished bread.
- Mix Wet Ingredients:
- In a separate larger bowl combine eggs butter oil vanilla and brown sugar stirring until well incorporated but not worrying about small brown sugar lumps which will dissolve during baking adding caramel notes.
- Combine Wet and Dry:
- Gently mix the dry ingredients into wet ingredients using a folding motion rather than vigorous stirring which develops gluten and creates a tough bread texture.
- Add Zucchini and Chocolate:
- Fold in the shredded zucchini which provides essential moisture without needing to be squeezed dry first then incorporate most of the chocolate chips reserving some for the top.
- Bake to Perfection:
- Pour batter into your prepared pan sprinkle remaining chocolate chips on top and bake for 50 to 60 minutes until a toothpick inserted comes out mostly clean with perhaps a bit of melted chocolate but no wet batter.
- Cooling Process:
- Allow the bread to cool in the pan for exactly 15 minutes which gives the structure time to set before carefully removing to finish cooling on a wire rack preventing a soggy bottom.

The real secret to this bread is not overmixing once you add the zucchini. I learned this after making countless loaves and noticing that a gentle fold creates a much more tender crumb than vigorous stirring. My family actually requests this bread year-round now I keep grated zucchini in the freezer specifically for winter baking emergencies.
Best Zucchini Preparation
Always use the fine side of your box grater when preparing zucchini for this bread. Larger shreds remain more noticeable in the final product which can alert suspicious vegetable avoiders. No need to peel the zucchini first as the skin contains nutrients and disappears completely in the dark bread. If your zucchini is particularly watery especially large garden specimens you may want to lightly blot but not completely squeeze dry as that moisture is beneficial to the recipe.
Make It Your Own
This versatile recipe welcomes customization based on your preferences. Swap walnuts or pecans for some of the chocolate chips for added texture and nutritional benefits. For a mocha variation add one tablespoon of espresso powder to the dry ingredients which intensifies the chocolate flavor without tasting like coffee. Those avoiding refined sugar can substitute coconut sugar for the brown sugar with minimal texture changes. For a gluten-free version use a 1to1 gluten-free flour blend but add an extra egg to help with binding.
Serving Suggestions
While delicious on its own this chocolate zucchini bread reaches new heights when served slightly warm with a spread of salted butter or cream cheese. For an indulgent dessert toast a slice and top with a scoop of vanilla ice cream and a drizzle of caramel sauce. Cut into small cubes this bread makes an unexpected addition to a brunch buffet or dessert platter. Children especially love it in lunch boxes where it feels like a special treat while secretly containing vegetables.
Common Queries
- → Why add zucchini to chocolate bread?
Zucchini helps keep the loaf moist and tender without making it taste like vegetables. It also blends seamlessly into the chocolate flavor and adds a soft texture.
- → Can I use regular cocoa instead of Dutch process?
Yes, either unsweetened cocoa or Dutch process works. Dutch process will give a deeper chocolate flavor and color, but both are delicious.
- → Do I need to peel the zucchini?
No need to peel! Simply wash and shred the zucchini. The skin is tender and nearly disappears in the loaf.
- → What's the best way to store this bread?
Wrap the loaf tightly in plastic wrap and keep at room temperature for up to four days. You can also freeze slices for longer storage.
- → How do I prevent sogginess in the loaf?
Make sure to squeeze out excess moisture from the shredded zucchini before adding it to the batter. This helps the loaf bake evenly.