American Quick Bread

Fudgy Chocolate Zucchini Bread Everyone Loves

This rich, ultra-moist chocolate zucchini bread is packed with cocoa, studded with melty chocolate chips, and so good that nobody will guess there's a vegetable hiding inside.

Imagine pulling a loaf out of the oven that smells like a brownie shop and looks like pure chocolate heaven. That is exactly what this fudgy chocolate zucchini bread delivers every single time. The crumb is impossibly tender, the crust has just a slight crackle, and every bite is loaded with deep cocoa flavor and pockets of melted chocolate chips. It is the kind of bread that makes people stop mid-conversation just to ask what you baked.

This recipe is perfect for those late summer weeks when zucchini is taking over your garden or showing up in your CSA box faster than you can use it. It is also a brilliant go-to when you want to treat yourself or impress guests without spending hours in the kitchen. Whether you serve it for breakfast with a cup of coffee, as an afternoon snack, or as a casual dessert, it always hits the spot and earns serious compliments.

Honestly, this loaf came together after one too many bland zucchini bread recipes that left me wondering why I bothered. I wanted something that actually tasted like chocolate, not just bread with a cocoa tint. After a few rounds of testing, swapping sour cream for some of the oil and doubling down on the cocoa, this version was born. Now it is the only zucchini bread I make, and I keep a stash of shredded zucchini in the freezer all year long just so I never have to go without it.

Recipe at a Glance

⏱Prep Time15 mins

🔥Cook Time60 mins

🕐Total Time1 hr 15 mins

🍰Servings10 slices

🇺🇸CuisineAmerican

🔢Calories~310 per slice

Ingredients

Wet Ingredients

2 large eggs, room temperature

1/2 cup granulated sugar

1/2 cup packed light brown sugar

1/3 cup vegetable oil

1/4 cup sour cream (or plain full-fat Greek yogurt)

2 teaspoons pure vanilla extract

1 1/2 cups shredded zucchini (from about 1 medium zucchini, not squeezed dry)

Dry Ingredients

1 cup all-purpose flour

1/2 cup unsweetened cocoa powder (Dutch-process preferred)

1 teaspoon baking soda

1/2 teaspoon baking powder

1/2 teaspoon fine sea salt

1 teaspoon espresso powder (optional but recommended)

Mix-ins and Topping

1 cup semi-sweet chocolate chips, divided

1 tablespoon turbinado or coarse sugar (for topping)

Substitutions & Variations

★If you do not have sour cream, plain full-fat Greek yogurt works as a perfect one-to-one swap and keeps the loaf just as moist.

★Dutch-process cocoa gives the deepest chocolate flavor, but natural unsweetened cocoa powder works fine if that is what you have on hand.

★You can replace the vegetable oil with melted coconut oil or melted butter for a slightly richer flavor.

★For a dairy-free version, use a plant-based sour cream alternative and dairy-free chocolate chips.

★Walnuts or pecans can be stirred in with the chocolate chips for added crunch and a nutty depth.

Step-by-Step Instructions

1

Preheat and Prep the Pan

Preheat your oven to 350 degrees Fahrenheit. Grease a standard 9x5-inch loaf pan generously with nonstick spray, then line it with a piece of parchment paper that hangs over the long sides. This sling makes it easy to lift the loaf out cleanly without any sticking drama.

2

Shred the Zucchini

Using the large holes of a box grater, shred the zucchini directly onto a clean cutting board or into a bowl. You need about 1 1/2 cups, which comes from one medium zucchini. Do not squeeze the moisture out. That liquid is what keeps this bread so incredibly fudgy and moist throughout the bake.

3

Whisk the Wet Ingredients

In a large mixing bowl, whisk together the eggs, granulated sugar, and brown sugar until the mixture looks pale and slightly thickened, about one minute. Add the vegetable oil, sour cream, and vanilla extract, and whisk until everything is smooth and fully combined. The mixture should look creamy and cohesive.

4

Stir in the Zucchini

Add the shredded zucchini to the wet ingredients and stir it in with a rubber spatula or wooden spoon until evenly distributed throughout the mixture. The batter will look a little watery at this stage, and that is totally normal. The zucchini releases its moisture as the bread bakes, creating that soft, brownie-like texture.

5

Mix the Dry Ingredients

In a separate medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder if using. Make sure there are no cocoa clumps by pressing them through with the back of a spoon if needed. The espresso powder will not make the bread taste like coffee, it simply deepens and amplifies the chocolate flavor.

6

Combine Wet and Dry

Pour the dry ingredients into the bowl with the wet ingredients and fold everything together using a rubber spatula. Mix just until no dry flour streaks remain. Overmixing at this stage can make the bread tough, so use a gentle folding motion and stop as soon as the batter looks uniform.

7

Fold in the Chocolate Chips

Reserve about 2 tablespoons of the chocolate chips for topping, then fold the rest into the batter until evenly spread throughout. The batter will be thick, dark, and glossy. It should look almost like a brownie batter, and that is a very good sign.

8

Pour and Top

Scrape the batter into the prepared loaf pan and smooth the top with your spatula. Scatter the reserved chocolate chips over the surface, then sprinkle the turbinado sugar evenly on top. That coarse sugar bakes into a slightly crunchy, sparkly crust that adds wonderful texture to each slice.

9

Bake the Bread

Bake in the preheated oven for 55 to 65 minutes, or until a toothpick inserted into the center comes out with just a few moist crumbs attached. Because of the chocolate chips, you may hit a melted chip on your first try, so test in two or three spots. The top should look set and the edges should be pulling slightly away from the pan.

10

Cool Before Slicing

Let the loaf cool in the pan on a wire rack for at least 15 minutes, then use the parchment sling to lift it out and let it cool completely on the rack, at least another 30 to 45 minutes. Cutting into it too soon will give you a gummy, crumbly slice. Patience here is genuinely worth it, and the aroma while you wait is almost its own reward.

Pro Baker Tips

✓Do not squeeze the moisture from the zucchini. That liquid is essential for the fudgy texture of this bread.

✓Room temperature eggs blend more smoothly into the batter and help the loaf bake evenly.

✓Dutch-process cocoa produces a noticeably darker, more intensely chocolatey loaf compared to natural cocoa.

✓If your loaf is browning on top too quickly before the center is set, loosely tent it with a piece of aluminum foil around the 40-minute mark.

✓Use a digital instant-read thermometer if you have one. The center of the loaf should read around 200 to 205 degrees Fahrenheit when fully baked.

✓Shredding zucchini in bulk and freezing it in 1 1/2-cup portions lets you make this bread any time of year without any fresh zucchini on hand.

Storage & Serving Notes

◆Store the cooled loaf wrapped tightly in plastic wrap or in an airtight container at room temperature for up to 3 days.

◆For longer storage, refrigerate the wrapped loaf for up to 6 days. Let slices come to room temperature before serving for the best texture.

◆To freeze, wrap individual slices in plastic wrap and place them in a zip-top freezer bag. They will keep for up to 3 months and thaw at room temperature in about an hour.

◆To warm a refrigerated or thawed slice, microwave it for 15 to 20 seconds and the chocolate chips will get melty and gooey all over again.

Serving Suggestions

This bread is versatile enough to shine in so many situations, from a casual breakfast to a casual dinner party dessert.

›Serve a thick slice slightly warm with a smear of salted butter for a simple and satisfying breakfast

›Top a slice with a scoop of vanilla ice cream and a drizzle of hot fudge for an easy and impressive dessert

›Pair with a hot latte or cold brew coffee for the ultimate afternoon snack

›Serve alongside fresh berries or sliced strawberries for a light and colorful brunch plate

›Dust slices lightly with powdered sugar right before serving for a bakery-style presentation

Frequently Asked Questions

Do I really not need to drain the zucchini?

That is correct. Unlike some zucchini bread recipes, this one is specifically developed to use undrained zucchini. The moisture from the zucchini is what creates that fudgy, brownie-like interior. Squeezing it out would leave you with a drier, denser loaf.

Can I make this bread into muffins instead?

Absolutely. Divide the batter evenly among 12 lined muffin cups and bake at 350 degrees Fahrenheit for 18 to 22 minutes, or until a toothpick comes out with just a few moist crumbs. They freeze beautifully and make great grab-and-go snacks.

My bread sank in the middle. What went wrong?

A sunken center usually means the bread was underbaked or the oven door was opened too early. Make sure your oven is fully preheated before the loaf goes in, avoid opening the door before the 45-minute mark, and always test doneness with a toothpick or thermometer rather than going by time alone.

Can I use frozen shredded zucchini?

Yes, frozen zucchini works great in this recipe. Thaw it completely and do not drain off the liquid that collects, just stir it all into the batter. The consistency of the baked loaf will be just as moist and delicious.

Can I reduce the sugar to make it less sweet?

You can reduce the total sugar by up to 2 tablespoons without significantly affecting the texture. Going further than that may impact how the bread bakes and change the moisture balance, so it is best to make smaller adjustments and taste-test as you go with future batches.

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Go Make It!

Once you bake this fudgy chocolate zucchini bread, it is going to earn a permanent spot in your recipe rotation. It is the perfect solution for an abundance of summer zucchini, a chocolate craving that needs answering, or simply a day when you want to bake something that makes the whole house smell incredible. Grab your grater, preheat that oven, and get ready for the best loaf of your week. You are going to want to share it, but no one would blame you if you kept it all to yourself.