The BEST Chocolate Zucchini Bread

sliced chocolate zucchini bread

My Chocolate Zucchini Bread recipe is a classic zucchini bread amped up with layers of chocolate culminating in a thick layer of ganache. It’s a super delicious way to scratch that mid-summer itch for a little chocolatey indulgence.

Slices of chocolate zucchini bread.

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.

two slices of death by chocolate zucchini bread with forks

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.

making death by chocolate zucchini bread

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.
death by chocolate zucchini bread just out of the oven

What kind of chocolate do you use for chocolate zucchini bread?

I’m glad you asked because I have strong opinions on this subject!

Chocolate chips and cream for making ganache

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.
making chocolate ganache for death by chocolate zucchini bread

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!
death by chocolate zucchini bread topped with ganache

Be sure to check out my Chocolate Pumpkin Bread, too!.

Death by Chocolate Zucchini Cake with Bittersweet Chocolate Ganache ~
3.76 from 117 votes

Chocolate Zucchini Bread

My Chocolate Zucchini Bread recipe is a classic zucchini bread amped up with layers of chocolate culminating in a thick layer of ganache.  It's a super delicious way to scratch that mid-summer itch for a little chocolatey indulgence.
Course Dessert
Cuisine American
Prep Time 15 minutes
Cook Time 50 minutes
Total Time 1 hour 5 minutes
Yield 8 servings
Author Sue Moran


  • standard 9×5 loaf pan
  • parchment paper


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


  • 1/2 cup heavy cream
  • 2 cups bittersweet chocolate chips


  • 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.
The nutritional information for recipes on this site is provided as a courtesy and although tries to provide accurate nutritional information, these figures are only estimates.


  • 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.
Death By Chocolate Zucchini Cake with a bittersweet chocolate ganache is the ultimate zucchini dessert! ~

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    Please rate this recipe!

  • Reply
    [email protected] is How I Cook
    August 5, 2016 at 11:21 am

    Oh my. This looks mouth wateringly good. In fact I’m drooling. This is one way to make chocolate healthy, right?

    • Reply
      August 5, 2016 at 11:53 am

      Dark chocolate is already healthy as far as I’m concerned 😉

  • Reply
    August 5, 2016 at 10:17 am

    Yes. This one’s in my immediate future. Between the zucchini coming from the garden and the constant craving for good chocolate, well it’s the perfect fix. Plus … you had me from that first teaser photo!

    • Reply
      August 10, 2016 at 10:44 am

      Just made this … chilled it was great. Allowed to come back to room temp … even better. Man, oh man!

  • Reply
    August 5, 2016 at 10:12 am

    This zucchini bread sounds wonderful. I wish I could afford to eat it… it would probably be the death of me! 🙂

  • Reply
    August 5, 2016 at 7:54 am

    This looks so incredibly moist and delicious, Good for any time of day!

  • Reply
    August 5, 2016 at 7:31 am

    This looks amazing! Love the photos too!

  • Reply
    Annemarie @ justalittlebitofbacon
    August 5, 2016 at 7:17 am

    Now I’m hungry. 🙂 All those layers of chocolate look just too yummy. I think even zucchini haters would want to get their hands on a few zucchini if they could make this bread!

    • Reply
      August 5, 2016 at 7:27 am

      This is definitely one for zucchini haters!

  • Reply
    August 5, 2016 at 7:16 am

    I am one of those people who cannot wait for summer to be over. So much fun to come towards the end of the year plus beautiful weather. I would be very sad to see the end of this bread though. All that chocolate – yum.

    • Reply
      August 5, 2016 at 7:26 am

      I’m with you Christie, but I think we’re in the minority.

    • Reply
      August 25, 2016 at 11:55 pm

      I’m with you on looking forward to summer ending! ?Kansas summers do me in … I take all the other seasons better . The best thing about summer for me is that the water warms up enough for swimming!

  • Reply
    Brian Jones
    August 5, 2016 at 7:08 am

    Such an indulgent and rich looking texture, that icing looks wonderful too a proper sweet lovers dream!

  • Reply
    [email protected]'s Recipes
    August 5, 2016 at 6:20 am

    That looks deadly tempting! And that thick layer of chocolate ganache is totally irresistible.

  • Reply
    Tricia @ Saving room for dessert
    August 5, 2016 at 5:14 am

    Oh yes!!! Now this is a great way to get the weekend started. I can only imagine how great this must be. That icing looks like silk. Sharing and pining!

    • Reply
      August 5, 2016 at 7:25 am

      BETTER than any silk I ever tasted…;)

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