Chocolate Zucchini Bread

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Chocolate zucchini bread that's rich, moist, and with a tender crumb. Made with cocoa powder for extra chocolate intensity.

Photography Credit: Elise Bauer

After last year’s debacle, the year in which we planted 2 zucchini plants and 2 patty pans (to provide for three people), this year we thought we would approach the garden more intelligently, and plant only one zucchini and one patty pan.


Once again, we’re kicking off the summer with a zucchini beast madly producing more than we can eat. Fortunately, we have recipes like this one that use lots of zucchini, and we have friends and neighbors who happily accept the baked goods made from them.

This chocolate zucchini bread, for example, uses 4 whole cups of freshly grated zucchini, for two loaves. That’s at least a day or two of produce from our plant.

Why four cups when most zucchini bead recipes call for three?

Because the result is even more moist. And if you are buried in garden zucchini, why not?

A few notes about this recipe. Grated zucchini, from zucchini picked fresh from the garden, should be rather wet, which is what makes this bread so wonderfully moist.

VIDEO! How to Make Chocolate Zucchini Bread

This video is part of our Simply Kids Cook YouTube series. Head over there to see more videos in the series.

Fresh in-season zucchini works best

We recommend only making zucchini bread with zucchinis bought (or grown) in season, summer and early fall, otherwise the zucchini you buy from the store is likely shipped from far away and is too dry by the time it gets to you.

Best Chocolate Zucchini Bread

The zucchini from our garden is so heavy with moisture that we have to drain it over a sieve after grating it. If for some reason your grated zucchini is not moist, your zucchini bread will not be moist. In that case you may need to add some water to the recipe, or sprinkle some water over the grated zucchini until it feels moist.

Natural Unsweetened Cocoa versus Dutch processed

This recipe calls for regular, not Dutch processed, unsweetened cocoa. This cocoa is slightly acidic (unlike the Dutch processed which is neutral in acidity), and reacts with the alkaline baking soda in the recipe to provide some of the bread’s leavening. (See this Wikipedia article for more explanation.)

We used a Ghiradelli natural unsweetened cocoa powder for this recipe. The salt and the instant coffee are there to intensify the chocolate flavor.

We are using almond extract, but you can easily use vanilla extract instead, just use about 4 times as much, so instead of 1/2 teaspoon of almond extract, use 2 teaspoons of vanilla extract.

If you want, you can toss some chocolate chips into the batter. I’ve done that and don’t think it really adds anything to this zucchini bread, it’s chocolatey enough on its own. But for some people, you can never have enough chocolate, right?

Look who scarfed down the first loaf! Neighbors Emily, Andrew, Caleb, and Matthew.

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Chocolate Zucchini Bread Recipe

  • Prep time: 10 minutes
  • Cook time: 1 hour, 10 minutes
  • Yield: Makes 2 loaves

This recipe makes 2 loaves; you can easily divide the recipe in half to make just one loaf.

The recipe calls for 4 cups of grated zucchini, which will yield particularly moist loaves. I've made it with 3 cups, which was also very good, just not as sublime as with 4 cups.


  • 4 cups grated zucchini (from about a pound and a half of zucchini)
  • 2 1/2 cups all purpose flour
  • 1/2 cup unsweetened cocoa (use natural unsweetened cocoa, NOT Dutch processed)
  • 2 teaspoons baking soda
  • 1/2 teaspoon salt
  • 1 teaspoon cinnamon
  • 1 1/2 cups granulated white sugar
  • 2 eggs
  • 3/4 cup unsalted butter (12 Tbsp or 1 1/2 sticks), melted
  • 1/2 teaspoon instant coffee granules
  • 1/2 teaspoon almond extract


1 Drain excess moisture from grated zucchini: Place the freshly grated zucchini in a sieve over a bowl to catch any excess moisture as it drains, while you work on prepping the other ingredients and preparing the recipe.

If for some reason your zucchini is on the dry side, hydrate the shredded zucchini by soaking it in water first, and then place in sieve.

2 Preheat oven, prepare loaf pans: Preheat oven to 350°F, with a rack in the middle. Grease two 9x5-inch loaf pans with baking spray or butter.

3 Whisk together flour, cocoa, baking soda, salt, cinnamon: Vigorously whisk together the flour, unsweetened cocoa, baking soda, salt, and cinnamon in a large bowl. Whisk until there are no more clumps and the ingredients are well combined.

4 Beat sugar and eggs, add melted butter, instant coffee granules, almond extract: In a separate large bowl, beat together the sugar and eggs until smooth, about a minute. You can do this with an electric mixer on medium speed, or by hand with a wooden spoon. (I'm lazy and use a mixer but it's easy enough to do by hand.)

Add the melted butter, instant coffee granules, and almond extract and beat until smooth.

5 Stir zucchini into sugar egg mixture, add flour mixture: Mix the shredded zucchini into the sugar egg mixture.

Add the flour to the zucchini mixture in 3 additions, stirring to combine after each addition.

6 Divide batter into pans and bake: Work quickly, and divide the batter between the two prepared loaf pans. (Work quickly because once the dry ingredients have mixed with the wet ingredients, the leavening has begun.)

Place into the oven. Bake for 50 minutes at 350°F, or until a skewer inserted into the center comes out clean and easily.

7 Cool: Remove to a rack. Let cool in the pan for 5 minutes, then run a blunt knife around the edges to separate the bread from the pan. Remove from the loaf pans and let cool completely on a rack.

Note that if you try to slice the chocolate zucchini bread before it has completely cooled, it will be rather crumbly. It's also easiest to slice with a bread knife.

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Elise Bauer

Elise Bauer is the founder of Simply Recipes. Elise launched Simply Recipes in 2003 as a way to keep track of her family's recipes, and along the way grew it into one of the most popular cooking websites in the world. Elise is dedicated to helping home cooks be successful in the kitchen. Elise is a graduate of Stanford University, and lives in Sacramento, California.

More from Elise

230 Comments / Reviews

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Did you make it? Rate it!

  1. Kartini Hanitio

    I clicked on this recipe as soon as I saw the word ‘instant coffee’, as I LOVE coffee. But with the amount of instant coffee, I didn’t taste any coffee of course. So I might add more next time. I used the ‘Dutch processed’ cocoa powder as I don’t have the other option, but glad it turned out well. I will use 1/4 tsp salt next time, as I just saw the suggestion below. :) I haven’t baked anything for almost 20 years, so my daughter (who usually the one who bakes, but is away from home) and husband were very surprised when I did this, haha. I used the zucchini from our ‘new vegetable’ garden, and I drained the extra moisture. Since I also have extra beets from the garden, I’m thinking of using 3 cups grated zucchini & 1 cup grated beets = 4 cups total. Do you think it will work well? I will increase the sugar amount, as my son+husband prefer the loaf a little sweeter. :D You’re right, your recipe is the ONLY one that includes so much zucchini! Awesome!!

    Show Replies (1)
  2. Billie

    I’ve made at least 16 loaves of this Chocolate zucchini bread and just freeze them. They are so good. I was scared at first too chocolate (not me but my hubby) he loves it better than the regular zucchini bread. I wish it was a little taller. Seems to drop down after I’ve let it cool. But it’s an awesome bread and thank you for the recipe.


  3. Martha

    Can you use almond flour instead APF?

    Show Replies (1)
  4. Stephanie

    I run a day care and some of the kids are super picky and I can never get them to eat veggies. I subbed the sugar with stevia, omitted the coffee because I was serving to kids and added some dark chocolate chips. This recipe reminds me of the one my mom used to make. So delicious!!! The kids gobbled it up thinking it was cake and were none the wiser that it was full of zucchini.


    Show Replies (1)
  5. Adrianne

    This is in the oven as I type it. I double the recipe and still only make 2 loaves, as I like it to be nice and tall, like the loaves in my favorite coffee shop. The flavor was incredible. I used cocoa from Creo Chocolate in Portland, OR, and it is delicious! Can’t wait for it to cool and slice!


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