...
Follow me on Pinterest

Amazing 14 Step Chocolate Zucchini Cake

By Daniel Carter on December 9, 2025

Chocolate Zucchini Cake

If you’ve got summer zucchini staring you down and you need a decadent way to use it up, then you’ve landed on the perfect recipe for Chocolate Zucchini Cake. I’m Daniel, and I started Reciqa because I truly believe that the best moments in life happen around a table loaded with good, honest food. For me, cooking isn’t about complicated techniques; it’s about creating little anchors of comfort and connection for the people you love. We all need those easy wins in the kitchen!

This isn’t just another “hide the vegetable” dessert. Oh no. This cake is profoundly rich, deeply chocolatey, and that zucchini works magic, lending an unbelievable, melt-in-your-mouth moisture that you just can’t get any other way. It’s sturdy enough for a family gathering but tender enough for a quiet Tuesday night dessert. Trust me, once you try this thick, fudgy crumb, you’ll be looking forward to zucchini season all year long.

Chocolate Zucchini Cake - detail 1

Gathering Your Ingredients for the Perfect Chocolate Zucchini Cake

Before we even think about turning on that oven, we need our supplies lined up. I like to get everything measured out first—we call that *mise en place* in fancy kitchens, but here, it just means less frantic searching later! Having everything ready makes the mixing part so smooth.

This recipe uses pantry staples mixed with that wonderful summer squash surprise. Don’t skip the sour cream; it really helps the texture sing!

Essential Components for Your Chocolate Zucchini Cake

Ingredient Amount Note
Unsalted Butter ½ cup Softened
Vegetable Oil ½ cup
Granulated Sugar 1 ¾ cups
Pure Vanilla Extract 1 teaspoon
Baking Soda 1 teaspoon
Baking Powder ½ teaspoon
Salt ½ teaspoon
Large Eggs 2
Sour Cream ½ cup
All-Purpose Flour 2 ½ cups
Dutch-Process Cocoa ¾ cup See notes if using regular cocoa
Shredded Zucchini 2 ½ cups
Chocolate Chips (Cake) ¼ cup
Heavy Cream ¾ cup
Semi-Sweet Chocolate Chips (Ganache) 10 ounces

Equipment Needed for Baking This Chocolate Zucchini Cake

  • Large mixing bowl
  • 9 x 13-inch baking pan
  • Small saucepan
  • Whisk and sturdy spoon or electric mixer
  • Wire cooling rack
  • Offset spatula

Step-by-Step Instructions for Your Chocolate Zucchini Cake

Okay, now for the fun part where everything comes together! Baking this cake is a straightforward process, but the sequence matters, especially when dealing with that wet zucchini. Just follow along, and you’ll have a fantastic dessert in under an hour of hands-on time. Remember that cooling time is crucial if you want that ganache to look perfect!

Preparing the Batter for the Chocolate Zucchini Cake

First things first: get that oven going! Step 1: Preheat your oven to 325°F. Make sure you have a 9 x 13-inch pan lightly greased—I usually use a little butter and flour, but you can use cooking spray if you prefer. Now, grab your largest mixing bowl for Step 2: Cream together the butter, oil, sugar, vanilla, baking soda, baking powder, and salt. You want this mixture to look light and fluffy before moving on.

Next, we add the wet ingredients. Step 3: Add the eggs, one at a time, stirring well after each addition. Then, you’ll alternate the sour cream and the flour. This alternating technique is key to keeping things smooth! Don’t dump it all in at once, or you’ll get lumps. Step 4: Add the cocoa powder and mix until everything is incorporated and the batter looks smooth. Don’t overmix here; just until you don’t see streaks of dry flour.

Finally, the star ingredient! Step 5: Fold in the shredded zucchini and that ¼ cup of chocolate chips. When you fold these in, you’ll notice the batter gets really thick—almost like brownie batter. That’s totally normal, so don’t panic! That thickness is what locks in all that moisture. Step 6: Spread that thick batter evenly to the edges of your prepared pan. Make sure it’s level so it bakes evenly.

Baking and Cooling Your Delicious Chocolate Zucchini Cake

Time for the heat! Step 7: Bake the cake for 30 to 35 minutes. How do you know when it’s done? Look for the top to spring back lightly when you gently touch it with your finger—that’s the sign the structure is set. If you’re unsure, a toothpick inserted near the center should come out with moist crumbs attached, not wet batter. Once it passes the test, remove it immediately! Step 8: Place the pan on a wire rack to cool completely. This step cannot be rushed! If the cake is warm when you pour the ganache on, you’ll have chocolate soup instead of a nice topping on your Chocolate Zucchini Cake.

Chocolate Zucchini Cake - detail 2

Creating the Simple Chocolate Ganache Topping

While the cake cools down (seriously, let it cool!), we make the easiest, glossiest topping ever. For Step 9: heat the heavy cream in a small saucepan over medium heat until it just starts to simmer around the edges. Watch it closely—you don’t want it boiling vigorously. Once it’s simmering, immediately take it off the heat. Now, Step 10: pour that hot cream right over your 10 ounces of semi-sweet chocolate chips sitting in a separate bowl.

Let it sit untouched for about five minutes to let the heat melt the chocolate thoroughly. Then, gently, Step 11: whisk to combine until the ganache comes together into one smooth, shiny liquid. It might look separated at first, but keep whisking patiently! Step 12: Allow the ganache to cool until it’s just slightly warm and still easily pourable. If it gets too stiff, you can warm it gently again, but I like it when it has just a little body.

Finishing and Setting the Chocolate Zucchini Cake

We are almost done! Make sure that cake is completely cool before you proceed to Step 13: Pour the ganache over the cooled cake and smooth it out with an offset spatula. Try to get an even layer across the top edge to edge. This is the grand finale! Step 14: Allow the ganache to set for about 30 minutes before you serve it. This short setting time lets the topping firm up just enough so it doesn’t run everywhere when you slice it. Enjoy that incredible, fudgy texture!

Tips for Success When Baking Chocolate Zucchini Cake

Baking is science, but with a little intuition, you can turn out amazing results every time. I’ve learned a few tricks over the years that make a big difference, especially when we are trying to sneak in vegetables! These little adjustments ensure your cake isn’t just good, it’s spectacular.

Ingredient Nuances and Substitutions

Pay attention to your cocoa powder; it really impacts the color and flavor. If you only have regular unsweetened cocoa powder on hand instead of the Dutch-process style listed, don’t worry! Just add an extra half teaspoon of baking soda to the dry ingredients. This helps balance out the acidity since regular cocoa is a bit sharper than the Dutch variety. Everything else should swap out perfectly fine.

Achieving Maximum Moisture in Your Chocolate Zucchini Cake

The zucchini is doing most of the heavy lifting for moisture, but how you handle it matters. I never bother squeezing the zucchini dry! Unlike zucchini bread, the batter for this Chocolate Zucchini Cake is meant to be very thick, and those extra liquids melt right into the chocolate flavor profile beautifully. Also, make sure you cream that butter and sugar long enough—it’s those tiny air pockets we create early on that hold onto moisture as the cake bakes. For more on the science of creaming butter and sugar, check out this baking technique explanation.

Serving Suggestions for This Chocolate Zucchini Cake

This cake is honestly so rich and satisfying on its own, you don’t need much fuss! But if you want to dress it up for company, I have a couple of go-to ideas. Because the ganache is so decadent, I love pairing it with something bright and fresh.

A small bowl of fresh raspberries or sliced strawberries cuts through the richness perfectly. If you’re serving it warm (which I sometimes do!), a tiny dollop of unsweetened whipped cream is divine. Honestly, though, sometimes I just dust a little powdered sugar over the top right before serving just to give it a little visual pop against that dark chocolate glaze. If you are looking for other great ways to use up summer berries, check out these raspberry cup cakes.

Storing Leftovers of Your Chocolate Zucchini Cake

This cake is so good, you probably won’t have many leftovers, but if you do, we need to keep that moisture locked in! Because of the sour cream in the cake and the dairy in the ganache, this dessert needs to be stored properly. Don’t leave it sitting on the counter for days!

The good news is that the Chocolate Zucchini Cake holds up really well for a few days in the fridge. Here is the best way to handle those few slices you manage to save:

Storage Method Duration Tip
Airtight Container (Room Temp) Up to 1 day If your kitchen is cool
Airtight Container (Refrigerator) Up to 3 days Best place for leftovers

Frequently Asked Questions About Chocolate Zucchini Cake

I know you might have a few lingering questions before you dive into baking this fantastic dessert. It’s easy to get nervous when baking with vegetables! Here are the things folks ask me most often about making this easy chocolate cake.

Can I freeze the Chocolate Zucchini Cake?

Yes, you absolutely can freeze this cake, but I have a strong recommendation on how to do it. If you plan on freezing it, do it before you pour on the ganache. The ganache freezes fine, but it sometimes gets a little streaky when it thaws, and I prefer the texture that way. Wrap the cooled, unfrosted cake tightly in plastic wrap, and then wrap it again in foil. It keeps beautifully for about two months! Just thaw it overnight in the fridge before frosting and serving.

What is the best way to shred the zucchini for this recipe?

When I developed this recipe, I found that grating the zucchini on the large holes of a box grater worked best. You want those shreds to be noticeable so they release moisture as they bake, giving you that lovely, tender crumb. And here’s a tip: don’t squeeze the moisture out! Unlike zucchini bread where you sometimes need to wring out the water, this chocolate cake batter needs all that liquid to stay ultra-moist. Just grate it and fold it right in. If you enjoy baking with zucchini, you might also enjoy these zucchini bread recipes.

Why is the batter so thick when making Chocolate Zucchini Cake?

If you look at the batter after you fold in the zucchini and the chocolate chips, you might think you did something wrong because it looks almost like cookie dough, right? Don’t worry about that at all! That thick consistency is exactly what we are aiming for. We have a lot of flour and a lot of shredded vegetable packed in there. That density is what keeps the cake from collapsing and ensures that rich, fudgy texture we all love in a great chocolate cake.

Nutritional Estimates for Chocolate Zucchini Cake

I always like to give a little heads-up about the numbers, just so you know what you’re digging into! These values are based on the ingredients listed and the total yield of 12 servings. Please remember these are just estimates, since every brand of cocoa or chocolate chip can vary just a little bit.

Nutrient Amount
Calories 400
Fat 22g
Carbohydrates 50g
Protein 5g

Share Your Chocolate Zucchini Cake Creations

I truly hope you loved making this cake as much as I love sharing it with you. There’s nothing better than hearing from folks who made one of my recipes! When you bake this Chocolate Zucchini Cake, please snap a picture and let me know how it turned out in the comments below.

Did it disappear instantly at your house? Did you try adding coffee to the ganache? I want to hear all about it! Happy baking, friends!

Share Your Chocolate Zucchini Cake Creations

I truly hope you loved making this cake as much as I love sharing it with you. There’s nothing better than hearing from folks who made one of my recipes! When you bake this Chocolate Zucchini Cake, please snap a picture and let me know how it turned out in the comments below.

Did it disappear instantly at your house? Did you try adding coffee to the ganache? I want to hear all about it! Happy baking, friends!

Print
clock icon cutlery icon flag icon folder icon instagram icon pinterest icon facebook icon print icon squares icon heart icon heart solid icon
Chocolate Zucchini Cake

Amazing 14 Step Chocolate Zucchini Cake


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

  • Author: Daniel
  • Total Time: 55 minutes
  • Yield: 12 servings
  • Diet: Vegetarian

Description

Daniel here, founder of Reciqa. For me, cooking is about creating moments of comfort and connection. I share straightforward, delicious recipes for everyone. Good food should bring joy. Let’s enjoy making food together! Today, we are making a rich Chocolate Zucchini Cake. This cake is moist and deeply chocolatey, perfect for using up summer zucchini.


Ingredients

  • ½ cup unsalted butter softened
  • ½ cup vegetable oil
  • 1 ¾ cups granulated sugar
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon baking soda
  • ½ teaspoon baking powder
  • ½ teaspoon salt
  • 2 large eggs
  • ½ cup sour cream
  • 2 ½ cups all-purpose flour
  • ¾ cup Dutch-process cocoa*
  • 2 ½ cups shredded zucchini
  • ⅕ cup chocolate chips (for cake)
  • ¾ cup heavy cream
  • 10 ounces semi-sweet chocolate chips (for ganache)


Instructions

  1. Preheat your oven to 325°F. Lightly grease a 9 x 13-inch pan.
  2. In a large mixing bowl, cream together the butter, oil, sugar, vanilla, baking soda, baking powder, and salt.
  3. Add the eggs. Stir in the sour cream alternately with the flour.
  4. Add the cocoa powder and mix until incorporated and the batter is smooth.
  5. Fold in the zucchini and ⅕ cup chocolate chips. The batter will be thick.
  6. Spread the batter to the edges of the prepared pan.
  7. Bake the cake for 30 to 35 minutes, until the top springs back lightly when touched.
  8. Place the pan on a wire rack to cool completely.
  9. To make the ganache, heat the heavy cream in a saucepan over medium heat until simmering.
  10. Remove the cream from the heat and pour it over the 10 ounces of semi-sweet chocolate chips.
  11. Whisk to combine until the ganache comes together.
  12. Allow the ganache to cool until just slightly warm and still pourable.
  13. Pour the ganache over the cooled cake and smooth it with an offset spatula.
  14. Allow the frosting to set for about 30 minutes before you serve it.

Notes

  • If you use regular unsweetened cocoa powder, add an extra ½ teaspoon of baking soda.
  • Store leftover chocolate zucchini cake in the refrigerator for up to 3 days.
  • Prep Time: 20 minutes
  • Cook Time: 35 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Leave a Comment

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star


Privacy Policy

Disclaimer