Recipe

Chocolate Zucchini Bread

A rich, moist quick bread with deep cocoa flavor, melty chocolate chips, and zucchini that disappears into the crumb.

By Matt Campbell

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4.8

A sliced loaf of chocolate zucchini bread on a wooden cutting board with a few chocolate chips scattered nearby on a tidy kitchen counter.

Chocolate zucchini bread is one of those recipes that feels like a loophole in the universe. You grate a totally normal zucchini, stir it into a very chocolatey batter, and somehow it bakes into a loaf that tastes like a brownie decided to get its life together.

This version is my go-to when I want big cocoa flavor, moist (not gummy) texture, and crisp, crackly edges around the top. No weird ingredients, no mixer required, and yes, it is even better the next day once the chocolate settles into its cozy groove.

Flour, cocoa powder, sugar, chocolate chips, eggs, oil, and a whole zucchini arranged on a bright kitchen counter.

Why It Works

What you get

Moist crumb without being soggy: Zucchini brings water, and cocoa plus flour balance it so the loaf stays tender, not wet.
Deep chocolate flavor: A full dose of unsweetened cocoa and a hit of espresso powder (optional) keeps it tasting like dessert.
Reliable rise: Baking soda and baking powder work together for a loaf that is tall and sliceable.
Melty pockets: Chocolate chips give you those little moments that make you pause mid-bite and reconsider sharing.

Key success tips

Do not squeeze the zucchini: For this recipe, that moisture is part of the magic. Just grate and go. If it is dripping-wet, blot lightly.
Stop mixing as soon as everything comes together: Overmixing makes quick breads tough.
Cool before slicing: The loaf finishes setting as it cools, and you will get cleaner slices.

Troubleshooting

Loaf seems too wet in the middle: Keep baking and tent with foil if needed. Ovens vary, and cocoa loaves can look done before they are.
Zucchini was super watery: Next time, give it a quick blot, or add 1 to 2 tablespoons flour if the batter looks noticeably looser than described.
Zucchini was very dry: If your grated zucchini feels oddly dry, a small splash of milk (1 to 2 tablespoons) can help loosen the batter.

Pairs Well With

Storage Tips

Room temp: Wrap tightly in plastic wrap or keep in an airtight container for up to 3 days. If your kitchen is warm or humid, go to the fridge sooner.

Refrigerator: Store airtight for up to 1 week. Let slices come to room temp, or warm them for 10 to 15 seconds in the microwave for peak chocolate-chip softness.

Freezer: This loaf freezes beautifully. Slice it first, then wrap individual slices and place in a freezer bag. Freeze up to 3 months. Thaw at room temp or microwave straight from frozen in 20 to 30 second bursts.

Individually wrapped slices of chocolate zucchini bread stacked beside a labeled freezer bag on a kitchen counter.

Common Questions

Do you peel zucchini for zucchini bread?

Nope. The peel is tender, it disappears in the bake, and it adds little flecks that make the loaf look extra homemade in the best way.

Should I squeeze the water out of the zucchini?

Not for this recipe. The batter is designed to use the zucchini moisture. If you squeeze it dry, the loaf can bake up a little dense and less tender.

One exception: if your zucchini is extremely watery (it is basically dripping), give it a quick gentle blot with paper towels. Do not wring it out like a dish towel.

How do I keep chocolate zucchini bread from being gummy?

Three things: measure flour correctly (spoon and level), do not overmix, and bake until a tester comes out with moist crumbs, not wet batter. Also, let it cool fully before slicing.

Can I make this into muffins?

Yes. Divide batter into a lined muffin tin (about 12 muffins). Bake at 350°F for 18 to 24 minutes, until a toothpick comes out with a few moist crumbs.

Can I reduce the sugar?

You can reduce by about 1/4 cup without wrecking the texture. More than that and the loaf can taste less chocolatey and bake up drier.

What add-ins work well?

Chopped walnuts or pecans (1/2 cup)
Mini chocolate chips for more even chocolate pockets
A pinch of cayenne for a subtle chocolate heat

Can I use a different loaf pan size?

Yes. An 8.5 x 4.5-inch loaf pan works too, but the loaf will be taller and may need a little more bake time. Start checking around 55 minutes and use the toothpick test.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

9 x 5-inch loaf pan
Box grater
Mixing bowl
Whisk and rubber spatula
Measuring cups and spoons
Parchment paper (optional but helpful)
Wire rack for cooling

I started making chocolate zucchini bread for the same reason most people do: a zucchini situation got out of hand. One minute you have a reasonable amount of summer produce, the next minute you are finding zucchini in places zucchini should not be. This loaf became my favorite way to make it disappear, because it does not taste like a compromise. It tastes like a chocolate snack cake that happens to be incredibly forgiving. If you can grate zucchini and resist overmixing, you are basically unstoppable.