Chocolate Zucchini Cake may sound like a dessert your grandma made to “hide” the garden harvest—but hear me out. This cake? It’s decadent. Moist. Packed with cocoa and melty chocolate chips. And yes, it’s loaded with grated zucchini… but trust me, nobody will know (unless you tell them, and honestly, why would you?).
We’ve all been there—staring down a pile of summer zucchini with no clue what to do with it. This recipe swoops in like a superhero in an apron, transforming your excess veggies into a dreamy, chocolatey cake that’s anything but health-food adjacent. It’s also a sneaky way to get your kids (and that picky spouse) to eat a vegetable with dessert. Win-win, right?
Whether you’re baking for a summer potluck, late-night cravings, or just because you need a moment of cocoa-induced bliss, this chocolate zucchini cake is your ride-or-die. Let’s bake it up!
Why You’ll Love This Chocolate Zucchini Cake
- Ultra-moist texture thanks to the zucchini and oil—but not greasy!
- Rich chocolate flavor that satisfies even the deepest sweet tooth.
- It’s a great way to use up summer squash that’s taking over your fridge.
- Sneaky vegetables? Check. Happy kids? Double check.
- No mixer needed—just bowls, a whisk, and a spoon.
- Easily adaptable to muffins, cupcakes, or a layer cake.
- Approved by experts! Allrecipes calls it “surprisingly good” and a hit with kids.

Ingredients
- 2 medium zucchini, grated and strained (about 2 cups packed)
- 4 large eggs
- 1/2 cup melted butter
- 1/2 cup vegetable oil
- 1 1/2 cups granulated sugar
- 1/2 cup brown sugar
- 2 teaspoons vanilla extract
- 2 1/2 cups all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 2 teaspoons baking soda
- 1/2 teaspoon baking powder
- 1 teaspoon salt
- 1 teaspoon cinnamon (optional, but adds cozy warmth)
- 1 cup semi-sweet chocolate chips (plus more for topping)
Instructions
1. Prep the Zucchini
Grate zucchini using the large holes of a box grater. Wrap it in a clean kitchen towel or several layers of paper towel and squeeze—seriously squeeze—until no more water drips out. Set aside.
2. Mix Wet Ingredients
In a large mixing bowl, whisk eggs, melted butter, oil, granulated sugar, brown sugar, and vanilla extract until smooth.
3. Combine Dry Ingredients
In a second bowl, sift together flour, cocoa powder, baking soda, baking powder, salt, and cinnamon.
4. Make the Batter
Gradually add the dry mix to the wet, stirring gently until just combined. Fold in the zucchini and chocolate chips. The batter will be thick—don’t worry, that’s how we get that perfect crumb.
5. Bake It
Spread the batter in a greased 9×13-inch pan. Sprinkle more chocolate chips on top if your heart says yes (mine always does).
Bake at 350°F for 40–45 minutes. A toothpick should come out with a few moist crumbs.
6. Cool & Slice
Cool completely in the pan. Slice, serve, and prepare to wow everyone—zucchini haters included.
Melania’s Tips for Perfect Chocolate Zucchini Cake
- Don’t skip the zucchini drain. Unless you want soggy-bottomed cake (Paul Hollywood disapproves).
- Use a metal pan for even baking—glass tends to run hot.
- Add espresso powder (just 1 tsp) to intensify the chocolate flavor.
- Want a double-chocolate layer cake? Split batter between two 8-inch round pans and bake for 30–35 minutes.
Bake It With the Littles
Get those tiny hands involved!
- Let them stir in the zucchini—don’t tell them what it is.
- Have them sprinkle the chocolate chips on top (bonus: less for you to snack on).
- Use this as a chance to talk about how baking is science… and magic.
Meal-Prep Magic
- Make ahead: Bake the cake up to 3 days in advance. Store covered at room temp.
- Freezer-friendly: Wrap individual slices in plastic wrap and freeze for up to 3 months. Just thaw and microwave for 20 seconds to bring it back to life.
- Double it: If your garden is that productive, double the recipe and freeze one for later.
Healthier Swaps Without Losing the Magic
Want to cut back a little without sacrificing flavor? Try these:
- Swap half the flour for whole wheat pastry flour.
- Use unsweetened applesauce in place of half the oil.
- Reduce the sugar slightly—start with 1 1/4 cups total if you prefer a less sweet cake.
- Use dark chocolate chips or chopped 70% cacao bars for a richer bite.
Leftover Remix
So you made too much? Lucky you!
- Chocolate Zucchini Trifles: Layer cake chunks with whipped cream and berries in a mason jar.
- Breakfast Treat: Warm a slice and top with Greek yogurt and honey.
- Cake Pops: Crumble the cake, mix with a little frosting, roll into balls, and coat in melted chocolate.
Gift It Like a Pro
Wrap slices in parchment and twine for a rustic summer treat. Deliver in a brown bakery box with a handwritten tag: “You’d never guess what’s inside!”
Perfect for teachers, neighbors, or that friend who swears they hate zucchini.
FAQs
Can I make this gluten-free?
Yes! Substitute with a 1:1 gluten-free flour blend designed for baking.
Can I use coconut oil instead of butter?
Absolutely. Just melt it first and make sure your eggs aren’t too cold, or the oil may seize.
How do I store leftovers?
Keep it in an airtight container at room temp for up to 3 days or refrigerate for a week. It gets fudgier with time!
Is this recipe vegan-friendly?
Not quite, but you could experiment with flax eggs and plant-based butter/oil combos.
Final Thought
This chocolate zucchini cake is proof that vegetables and dessert can live in delicious harmony. It’s the kind of cake that brings people together—at summer BBQs, after-school snack times, or late-night fridge raids. It’s easy, indulgent, and just happens to be sneaky-healthy (but we’ll keep that part between us).
Bake it once, and I promise—it’ll be your go-to every zucchini season.
Print
7 Reasons to Love This Chocolate Zucchini Cake
A rich, ultra-moist chocolate cake secretly packed with veggies! This sneaky-sweet dessert is perfect for using up summer zucchini and is so indulgent, no one will know it’s made with vegetables!
- Total Time: 1 hour
- Yield: 12–16 slices
Ingredients
- 2 medium zucchini, grated and strained (about 2 cups packed)
- 4 large eggs
- 1/2 cup melted butter
- 1/2 cup vegetable oil
- 1 1/2 cups granulated sugar
- 1/2 cup brown sugar
- 2 teaspoons vanilla extract
- 2 1/2 cups all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 2 teaspoons baking soda
- 1/2 teaspoon baking powder
- 1 teaspoon salt
- 1 teaspoon cinnamon (optional but adds warmth)
- 1 cup semi-sweet chocolate chips (plus more for topping)
Instructions
- Prep the Zucchini: Grate zucchini using the large holes of a box grater. Place in a clean kitchen towel or paper towels and squeeze out excess moisture. Set aside.
- Mix Wet Ingredients: In a large mixing bowl, whisk together eggs, melted butter, oil, granulated sugar, brown sugar, and vanilla extract until smooth and well combined.
- Combine Dry Ingredients: In a separate bowl, sift together flour, cocoa powder, baking soda, baking powder, salt, and cinnamon (if using).
- Make the Batter: Gradually stir the dry ingredients into the wet mixture until just combined—do not overmix. Fold in the grated zucchini and chocolate chips. Batter will be thick.
- Bake: Pour batter into a greased 9×13-inch baking pan and smooth the top. Sprinkle additional chocolate chips on top if desired. Bake at 350°F (175°C) for 40–45 minutes or until a toothpick inserted in the center comes out clean or with just a few moist crumbs.
- Cool and Serve: Let the cake cool completely in the pan before slicing. It’s delicious as-is or with a light dusting of powdered sugar or a scoop of vanilla ice cream.
Notes
- You can also bake this in two 8-inch round pans for a layered cake—just reduce bake time to about 30–35 minutes.
- Don’t skip draining the zucchini, or your cake may be overly dense or soggy.
- Want to sneak in more nutrients? Swap half the flour for whole wheat!
- Prep Time: 15 minutes
- Cook Time: 45 minutes
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