★★★★★

Chocolate Chip Zucchini Cupcakes

Chocolate Chip Zucchini Cupcakes are so moist and fudgy, you’d never guess there’s a vegetable hiding inside! Easy to make with easy ingredients and a rich chocolate frosting, this zucchini cupcake recipe is an instant hit.

When your garden is overflowing with the green squash, it’s time to make Chocolate Zucchini Brownies, Lemon Zucchini Cake and these chocolate chip cupcakes!

Chocolate cupcake in a white liner topped with chocolate frosting and chocolate chips.

Why These Cupcakes are Best

Make a big batch of these Chocolate Chip Zucchini Cupcakes when zucchini are in season. Enjoy a few right away and freeze the rest so you can enjoy amazing chocolatey zucchini cupcakes all year long!

  • Zucchini keeps these cupcakes moist and fudgy, even days after baking.
  • The chocolate frosting on top gives them the perfect touch of decadence.
  • No one will ever guess these are cupcakes made with vegetables.
  • They freeze beautifully!

Adding zucchini to desserts goes beyond a classic zucchini bread. You can make zucchini crumble and even chocolate chip zucchini cookies!

Ingredient Notes

Ingredients needed to make chocolate chip zucchini cupcakes.

The cupcake batter in this recipe includes familiar baking staples like flour, sugar and eggs.

  • Vegetable oil gives the cupcakes their fudginess. The high smoke point and neutral flavor makes it ideal for baked goods.
  • Zucchini is our not-so-secret ingredient! Here’s a step-by-step guide for how to shred zucchini for these cupcakes.
  • Vanilla Extract heightens the chocolate flavor. I used my homemade vanilla extract but store bought is more than fine too.
  • Milk thins the thick fudgy batter to the perfect consistency. You can use any milk you have on hand.
  • Cocoa powder – I recommend a high quality cocoa powder such as Ghirardelli or Guittard brands. The cheaper cocoa doesn’t taste nearly as delicious!
  • Chocolate chips – We used semi-sweet morsels inside the cupcakes and as a garnish on top.

Tips and Tricks

Step by step photos showing how to make chocolate frosted cupcakes.

I’ve made what seems like hundreds of batches of cupcakes by now, so I’ve learned a thing or two!

Keep these tips in mind to make the BEST Chocolate Chip Zucchini Cupcakes.

  1. Do not over fill the cupcake liners. Unlike muffins, cupcake tops should be relatively flat so that you can add frosting evenly on top. The liners should be no more than ⅔ full.
  2. If your batter is dry…let the batter sit for about 10-15 minutes after adding the zucchini. This gives it time to set and allow the moisture of the zucchini to come out into the batter.
  3. Let the cupcakes cool COMPLETELY before you add the frosting. I know you’ll be excited to taste them but resist the urge to pipe on the frosting too soon. Warm cupcakes will turn the frosting into a goopy, runny mess.
  4. Sprinkle extra chocolate chips on top. The garnish looks great and who doesn’t want more chocolate in their life?
  5. This recipe makes a lot of frosting. Be prepared to have leftovers!

Frosting Suggestions

Chocolate frosting being piped onto a chocolate cupcake.

Wondering what to do with all that leftover frosting?

Aside from eating it straight out of the bowl with a spoon, there are countless ways to enjoy the rich chocolate buttercream.

  • Freeze it. Transfer the frosting to an ziploc freezer bag and freeze for up to 3 months. The next time you make a batch of cupcakes or cake that needs frosting, you’ll be prepared!
  • Cookie sandwiches. Spread a layer of frosting between two cookies for an easy impressive dessert.
  • Cake balls. Roll this frosting with cake crumbs and dip them in melted chocolate for easy cake truffles or cake pops!
  • Brownies. Everyone loves our homemade frosted brownie recipe!

At the end of the day, I’m never sad to have a little extra frosting on hand.

I get it, though. Sometimes you don’t want to hassle of having to figure out what to do with leftover frosting.

If that’s you, feel free to cut the recipe for the chocolate frosting in half. You will end up with just enough to pipe a generous layer of buttercream onto 18 chocolate chip zucchini cupcakes.

Chocolate frosted cupcake with a bite taken out.

Recipe FAQs

How long do zucchini cupcakes keep in the freezer?

Stored in an airtight container, these will stay good for about 3 months in the freezer.

Should I freeze them with our without the frosting?

You can do it either way. I prefer to freeze them without the frosting because the frosting looks better when it’s piped on fresh.

Do these cupcakes need to be refrigerated?

Our Chocolate Chip Zucchini Cupcakes do not need to be kept chilled. If you’re not freezing them for longer storage you can keep them at room temperature.
Stored tightly covered, they will stay good for about 5 days.

More Easy Cupcake Recipes

Yield: 18 cupcakes

Chocolate Chip Zucchini Cupcakes

Prep Time 20 minutes
Cook Time 25 minutes
Additional Time 15 minutes
Total Time 1 hour

You'll love these moist and fudgy, Chocolate Chip Zucchini Cupcakes! Hard to believe there's a vegetable inside these sweet cupcakes!

Ingredients

For the cupcakes:

  • ¼ cup unsalted butter, softened
  • 1 cup granulated sugar
  • ½ teaspoon baking soda
  • ¼ teaspoon baking powder
  • ¼ teaspoon kosher salt
  • ¼ cup vegetable oil
  • ½ teaspoon vanilla extract
  • ¼ cup milk
  • 1 large egg
  • 1 ¼ cup all-purpose flour
  • ½ cup unsweetened cocoa powder
  • 1 cup shredded zucchini
  • ½ cup semi-sweet chocolate morsels

For the frosting:

  • ¾ cup unsalted butter, softened
  • 3 ½ cup powdered sugar
  • ½ cup unsweetened cocoa powder
  • ⅓ cup milk
  • ½ cup semi-sweet chocolate morsels, for garnish

Instructions

  1. Preheat oven to 350°F. Line muffin pan with paper baking cups. Set aside.
  2. In a large mixing bowl, beat butter, sugar, baking soda, baking powder, salt, and canola oil together until blended. Add in vanilla, milk, and egg. Beat for 2-3 minutes.
  3. Add in flour and cocoa, beat an additional 2 minutes. Fol in zucchini and semi-sweet morsels.
  4. Scoop into cupcake liners until about ⅔ full. Bake for 22-25 minutes. Remove and cool completely before adding frosting.
  5. For the frosting, beat butter for 2-3 minutes until pale in color, scraping down the sides of the bowl as necessary. Add in powdered sugar, cocoa powder and milk. Beat 3-4 minutes until fluffy! Pipe onto cooled cupcakes. Sprinkle with chocolate chips and enjoy!

Notes

  • Use our guide on how to shred zucchini.
  • Do not over fill the cupcake liners. Unlike muffins, cupcake tops should be relatively flat so that you can add frosting evenly on top. The liners should be no more than ⅔ full.
  • If your batter is dry...let the batter sit for about 10-15 minutes after adding the zucchini. This gives it time to set and allow the moisture of the zucchini to come out into the batter.
  • Let the cupcakes cool COMPLETELY before you add the frosting. I know you'll be excited to taste them but resist the urge to pipe on the frosting too soon. Warm cupcakes will turn the frosting into a goopy, runny mess.
  • Sprinkle extra chocolate chips on top. The garnish looks great and who doesn't want more chocolate in their life?
  • This recipe makes a lot of frosting. Be prepared to have leftovers!

Nutrition Information:

Yield:

18

Serving Size:

1 cupcake

Amount Per Serving: Calories: 350Total Fat: 17gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 7gCholesterol: 38mgSodium: 70mgCarbohydrates: 49gFiber: 2gSugar: 38gProtein: 3g

*Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.

Did you make this recipe?

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About Aimee

Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

Learn more about Aimee.

Affiliate Disclosure:**There may be affiliate links in this post! By clicking on them, or purchasing recommended items I may receive a small compensation. However, I only recommend products I love! Thank you for supporting Shugary Sweets! See my disclosure policy for more info**

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Posted on June 19, 2022

Comments & Reviews

  1. In case your system is not support in wireless audio device, s you are required to know about the wireless setting details. my suggest web portal is perfect place for understanding this function.

  2. Dear Aimee, There is one zucchini in my fridge; it seems it was waiting for this beauty. Will do! Thank you very much !

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