Chocolate Zucchini Bundt Cake Recipe

The Chocolate Cake That Hides a Vegetable and Nobody Cares

There is something almost magical about a chocolate zucchini bundt cake. It looks like an indulgent, bakery-style dessert, all deep cocoa color and glossy glaze, and yet tucked into every slice is a whole cup of shredded zucchini working quietly in the background. You will not taste it. What you will taste is an incredibly moist, tender crumb that stays fresh for days, studded with pockets of melted chocolate chips. This is the kind of double chocolate zucchini cake recipe that converts even the most stubborn zucchini skeptics at the table.

I first started making this as a way to use up a garden that was producing more zucchini than my family could reasonably eat, and it quickly became one of those recipes I bake on repeat, garden season or not. Think of it as a cousin to chocolate zucchini banana bundt cake, but leaner on the banana and heavier on the fudgy, rich chocolate flavor.

Before we get cooking, the right tools and ingredients make a real difference here. A sturdy bundt pan with good nonstick coating and a fine box grater for the zucchini will save you a lot of frustration, and good quality cocoa powder genuinely changes the flavor of the finished cake.

Why Zucchini Belongs in Chocolate Cake

If you have never made a zucchini cake chocolate lovers actually crave, here is the short version. Zucchini is mostly water and very mild in flavor, so once it is shredded and folded into batter, it essentially disappears, leaving behind moisture instead of taste. That moisture is what gives this cake its signature fudgy, tender texture, one that stays soft for days instead of drying out like a standard bundt cake often does.

Chef's Tip: Always squeeze the shredded zucchini in a clean kitchen towel before adding it to the batter. Skipping this step is the number one reason zucchini cakes turn out dense or gummy instead of light and moist.

Building Deep Chocolate Flavor

This is not a subtle, one-note chocolate cake. Between the cocoa powder in the batter, the chocolate chips folded throughout, and the rich ganache-style glaze on top, this glazed chocolate zucchini bundt cake delivers chocolate flavor in three distinct layers:

• Cocoa powder builds the base flavor and dark color of the cake itself
• Chocolate chips, tossed in a little flour so they do not sink, add pockets of melty richness in every bite
• A cream and chocolate glaze poured over the cooled cake adds shine and an extra layer of decadence

If you love a true double chocolate zucchini bundt cake, resist the urge to skip the glaze. It only takes a few minutes and it transforms the cake from a nice everyday treat into something that looks like it came from a proper bakery case.

A Few Notes on Technique

A bundt pan has a lot of nooks and crannies, and an underbaked or stuck cake is genuinely heartbreaking after all that work. A few things make a real difference:

• Grease every groove of the pan generously, then dust with cocoa powder instead of flour so you avoid pale streaks on the finished cake
• Mix the batter just until combined once the flour goes in, since overmixing develops gluten and leads to a tougher, less tender crumb
• Let the cake cool in the pan for about 15 minutes before inverting, which gives it time to set up enough to release cleanly

Ready to make it? Here is the full step-by-step recipe:

Chocolate Zucchini Bundt Cake Recipe

This chocolate zucchini bundt cake is deeply moist, rich with cocoa, and sneaks in a whole zucchini without anyone noticing. A glossy chocolate glaze seals the deal.

Prep:20 mins

Cook:55 mins

Total:75 mins

Yield:12 servings

Cuisine:American

Yield: 12 servingsCalories: 385Protein: 5g

Carbs: 52gFat: 19gSat. Fat: 6gFiber: 3gSugar: 34gSodium: 240mg

Ingredients

Units

USM

Scale

1x2x3x

• 2 1/2 cups all-purpose flour, spooned and leveled
• 3/4 cup unsweetened cocoa powder, natural or dutch process
• 1 tsp baking soda
• 1/2 tsp baking powder
• 3/4 tsp salt, fine sea salt
• 1 1/2 cups granulated sugar
• 3/4 cup vegetable oil, or melted coconut oil
• 3 large eggs, room temperature
• 2 tsp vanilla extract, pure
• 1/2 cup buttermilk, or plain yogurt thinned with milk
• 2 cups shredded zucchini, packed, excess moisture squeezed out
• 3/4 cup semi-sweet chocolate chips, tossed with 1 tbsp flour
• 4 oz semi-sweet chocolate, chopped, for the glaze
• 3/8 cup heavy cream, for the glaze
• 1 tbsp unsalted butter, softened, for the glaze

Instruction

1

Preheat the oven to 350 degrees F (175 degrees C). Generously grease a 10 to 12 cup bundt pan with butter or baking spray, making sure to coat every groove, then dust with cocoa powder and tap out the excess.

2

In a medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, and salt. Set aside.

3

In a large mixing bowl, whisk the sugar and oil together until combined. Add the eggs one at a time, whisking well after each addition, then whisk in the vanilla.

4

Add the dry ingredients to the wet ingredients in two additions, alternating with the buttermilk, mixing gently just until no streaks of flour remain. Do not overmix.

5

Fold in the shredded zucchini and the flour-tossed chocolate chips using a spatula until evenly distributed.

6

Pour the batter into the prepared bundt pan and smooth the top. Tap the pan firmly on the counter a couple of times to release any air bubbles.

7

Bake for 50 to 60 minutes, or until a skewer inserted into the center comes out with a few moist crumbs but no wet batter.

8

Cool the cake in the pan on a wire rack for 15 minutes, then invert onto the rack to cool completely, at least 1 hour, before glazing.

9

For the glaze, heat the heavy cream until steaming, then pour over the chopped chocolate in a heatproof bowl. Let sit for 2 minutes, then stir in the butter until smooth and glossy.

10

Let the glaze cool and thicken slightly for 5 to 10 minutes, then drizzle over the cooled cake. Slice and serve.

Equipment

• 10 to 12 cup bundt pan
• Box grater
• Large mixing bowl
• Whisk
• Rubber spatula
• Wire cooling rack
• Heatproof bowl for glaze

Notes

Squeeze the shredded zucchini in a clean kitchen towel before folding it in, otherwise the cake can turn gummy. Store the cake covered at room temperature for up to 2 days or in the fridge for up to 5 days. It also freezes beautifully unglazed for up to 3 months.

Pin This RecipePrint Recipe

Serving and Storing Your Bundt Cake

This cake is wonderful served simply sliced with a cup of coffee, but it also holds up beautifully as a dinner party dessert. A scoop of vanilla ice cream or a dollop of lightly sweetened whipped cream alongside a warm slice takes it up another level entirely.

Store leftovers covered at room temperature for up to two days, or in the refrigerator for up to five if your kitchen runs warm. The cake also freezes well without the glaze, tightly wrapped, for up to three months, so it is easy to bake ahead for a holiday or gathering.

Whether you call it a chocolate zucchini brownie cake for its fudgy texture or simply your new favorite way to use up summer squash, this is the kind of recipe that earns a permanent spot in the regular rotation. Once you taste how moist and chocolatey it is, you will find yourself buying zucchini on purpose, just to make it again.