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“Omg, wow wow wow!!! I made this yesterday and we just tried it tonight. I canโt remember the last time Iโve tasted anything this delicious. If anyone is on the fence about making this, do it! One of the best things Iโve ever had.” ~Joni

Beware ~ this Chocolate Zucchini Bread (it’s really a cake) is absolutely irresistible.
It’s shamelessly all about the chocolate, with a bunch of fresh zucchini thrown in to keep it legal. If you’re planning to make it for company, better bake two, you won’t be able to control yourself.
This classic zucchini bread has been transformed into a double chocolate zucchini bread with the addition of cocoa powder and bittersweet chocolate chips.
We’re not even halfway through summer but I feel like I’ve gorged on all the salads, fresh veggies, and berries I could ever want…and there’s boatloads of zucchini hanging around, so now it’s time for a different kind of good eats. This bread would be fantastic naked — just sprinkle it with a bit of powdered sugar and call it breakfast or a coffee break.
But I don’t believe in doing things halfway, and adding a thick layer of bittersweet ganache really turns this zucchini bread into an experience.
Even though once you bake this bread you can’t see the zucchini (it doesn’t stand a chance with all that dark chocolate) it’s in there, and it gives this cake a great moisture and a nice loose crumb.
Do you peel zucchini for zucchini bread?
- Heck no! Just grate it up on a box grater and you’re good to go.
What kind of chocolate do you use for chocolate zucchini bread?
I’m glad you asked because I have strong opinions on this subject!
- I use dark chocolate for the cocoa powder, the chocolate chips, and the ganache.
- I like Hershey’s Special Dark cocoa powder, it’s a ‘Dutched’ cocoa powder formulated to give a super deep color to baked goods. Sometimes I’ll use half Special Dark and half regular cocoa powder if I don’t want it quite so intense.
- I like to use either Nestle’s Dark Chocolate Chips or sometimes I use Ghirardelli’s Bittersweet Baking Chips. I use these both in the batter and in the ganache. I think their flavor is superior.
What is ganache?
Chocolate ganache is a mixture of heavy cream and chocolate. When melted together they bond and form a thick creamy mixture than can be made with different proportions of cream to chocolate for various uses such as frostings and fillings or truffles. As ganache cools it becomes firmer.
- The ganache I use to frost this zucchini bread is made with 1/2 cup cream and 2 cups chocolate chips. The result is thick enough to spread on the cake without any dripping. As it cools, or if you refrigerate the bread, it takes on a fudge-like texture.
Can you make a vegan ganache?
- Yes! Use canned coconut cream instead of dairy cream.
- use dairy free dark chocolate or chocolate chips.
- Use everything in the same proportions, it works beautifully!
Be sure to check out my Chocolate Pumpkin Bread, too!.
Chocolate Zucchini Bread
Video
Equipment
- standard 9×5 loaf pan
- parchment paper
Ingredients
dry ingredients
- 1 1/4 cups all purpose flour
- 1/2 cup cocoa powder, I used Hershey’s Special Dark
- 1 tsp baking soda
- 1 tsp cinnamon
- 1/4 tsp salt
wet ingredients
- 1 cup sugar
- 1 large egg plus 1 egg yolk
- 1/2 cup butter, melted and slightly cooled
- 1 tsp vanilla extract
- 2 cups grated zucchini, buy two medium
- 2/3 cup chocolate chips, I used bittersweet
ganache
- 1/2 cup heavy cream
- 2 cups bittersweet chocolate chips
Instructions
- Set oven to 350F
- Lightly spray and line a 9×5 loaf pan with parchment, leaving the ends long so you can lift the cake out for slicing after it has baked.
- Whisk the dry ingredients together. I like to sift the cocoa powder to get rid of any lumps. Set aside.
- Whisk the sugar and eggs together until pale and smooth. Beat in the butter and vanilla, then fold in the zucchini.
- Blend the dry ingredients into the wet, in three stages, blending just until incorporated after each addition, and don’t over-beat!
- Fold in the chocolate chips and spread the batter into the prepared pan. Bake for about 50 minutes, until a toothpick inserted near the center doesn’t come out with wet batter clinging to it. Melted chocolate is ok!
- Cool completely on a rack before frosting.
- To make the ganache, heat the cream to a simmer, then pour over the chocolate chips. Let sit for 3-5 minutes, then stir until glossy and smooth. If you still see bits of chocolate, microwave it for 15 seconds and stir again. Then spread a thick layer over your zucchini bread. If your ganache seems too runny, let it sit or refrigerate for a bit to set it up.
Notes
- I made this with bittersweet chocolate and extra dark cocoa powder, and so it has a bittersweet flavor. If you don’t like that, be sure to use a sweeter chocolate.
- If you want to try a similar recipe without the zucchini, try my Chocolate Pound Cake.
made it! L O V E D it! thank you. It turned out perfect. I did bake in a top oven and needed 3 extra min of cooking. I also did half zero sugar sub and regular sugar. It was great.
I made this cake when i was on a diet for I had some leftover grated zucchini. Worst mistake. I love this recipe to pieces, but it really should come with a stronger warning than the one that’s put up here. I often crave for this and almost get angry that it isn’t in stores. This is love in a pan. Thank you for sharing this wonderful recipe with the world.
Love in a pan! I’ve got to steal that ๐
This chocolate zucchini bread had a lovely rich and moist texture and very fabulously chocolatey! I think I baked for an extra 5 minutes (an hour total ) for perfection, moist yet done (didn’t sink) ; and I used a good 2 C packed grated zucchini. But – I decreased the sugar to 2/3 and still thought a bit too sweet. Also – I really think it needs more salt! We’re all afraid of too much salt these days, but chocolate especially needs some salt. I remember my grandmother adding a pinch to her stove top cocoa. I think 1/2 teaspoon would highlight the flavor of the chocolate.
Thanks for the salt tip Julia, I definitely have an under salting problem sometimes, I’m always afraid of over-salting!
I’ve made this more times than I can remember. It’s fabulous! Have you made it into muffins/cupcakes? How many would it make and the baking time?
I made this with gluten- free flour, and the taste was disappointing. I havenโt made it with regular flour so I really canโt compare.
Hmmm, I’m not sure how the gf flour would have affected the taste ~ the flavor would come from the type of chocolate and cocoa powder you used, and if they’re relatively good quality the flavor should be nice and rich.
Good morning Sue!
I made this delicious bread the other day to take to a friendโs and never made it before. I didnโt make the ganache as I didnโt have any heavy cream but it was very rich and delicious without it. I tested it and there were no crumbs on the toothpick but as it cooled, it sunk in the middle! I was afraid it wasnโt done but it tested done. Can you give me any suggestions why it sunk in the middle? I made sure I didnโt overmix any of the ingredients and mixed them by hand.
Thank you for all your GREAT recipesโI look forward to receiving and trying them!
Hey Susan ~ sometimes the toothpick test can be misleading, especially with moist dense cakes like this. It sounds like it was under baked.
I have found that when baking with zuchini especially if it is really fresh, to grate and then squeeze out some of the moisture with a clean tea towel. Sometimes the zuchini is just to wet.
Good morning Sue,
I hope you and your family are enjoying your Holiday weekend. Thank you for responding to my question and when I baked another loaf the other day I baked it 11 minutes longer and the consistency was a drier texture but it didnโt sink in the middle!!?. I tented it so it wouldnโt get too brown but next time I make it Iโll bake it for 9-10 minutes longer and it should hit the nail on the head.
Thank you again for responding and I hope you enjoy the rest of this Holiday!
PSโDeath by Chocolate Pumpkin Bread next on my list!
It was under baked for sure. I just made loaf number 2 and that loaf needed even loner in the oven. I like to give it a little touch (finger poke) to see if it will bounce back. My first loaf cooked for 43 min and my second loaf cooked for 48 min and still probably needed 2 more min. Save oven, same middle rack, same temp, same pan! So you just neva know! I love it. I even added an extra cup of zucchini! love this bread! Thanks Susan. =]
Can this be made with an egg subsitute? Like egg beaters.
I’m not familiar with baking with egg beaters, but if they function just like eggs, then I bet you can.
Yum! Perfection! Thanks ๐
Glad you liked it Deborah :)))
Just wondering…do you remove seeds before grating? And is there a need to squeeze out extra moisture from the grated zucchini before mixing in? Thanks!
Nope, I just grate the whole thing up. And I don’t squeeze out moisture, either. It just becomes part of the moisture content of the batter.
Hi can I use coconut butter instead of regular butter?
Thanks
I don’t see why not.
Thanks. Itโs in the oven right now. Iโll
Let you know how I did.