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Moist Double Chocolate Zucchini Muffins

38 Reviews

A white plate holding a jumbo chocolate zucchini muffin with mini chocolate chips on top These are the BEST Double Chocolate Zucchini Muffins and a great way to use those zucchinis from your garden! And your kids won’t even know they’re eating a vegetable!

A white plate holding a jumbo chocolate zucchini muffin with mini chocolate chips on top and sprinkled around the moist chocolate muffin

Double Chocolate Zucchini Muffins Recipe

If you have some extra zucchinis from your garden because zucchinis are in season right now or you just want to pick up a few extras at the store next time you go, you definitely want to make these double chocolate zucchini muffins!

Zucchini muffins and breads are my favorite things to make when zucchinis are in season, so this recipe (with all the chocolate) is perfect timing.

Although the chocolate may look like the star of this recipe, it’s actually the zucchini that gives them so much delicious flavor, texture and moisture.


a huge chocolate muffin that is being unwrapped from a paper liner with mini chocolate chips sprinkled on top

What’s in Zucchini Chocolate Chocolate Chip Muffins?

These zucchini chocolate chip muffins are so simple to make! Here’s everything that’s used in this recipe: 

  • Grated zucchini
  • Flour
  • Granulated sugar
  • Brown sugar
  • Cocoa powder
  • Baking soda
  • Baking Powder
  • Salt
  • Sugar 
  • Chocolate chips 
  • Vanilla extract
  • Oil
  • Eggs
  • Sour Cream

a tall double chocolate zucchini muffin cut in half with mini chocolate chips sitting on a wooden counter being unwrapped from a paper muffin liner


How to Make Double Chocolate Zucchini Muffins

My favorite part about this recipe is that you don’t need a mixer. All you need is a bowl and a whisk and spatula! Here are the basic steps to making zucchini chocolate chocolate chip muffins: 

  1. Start by whisking all of the wet ingredients together, then add the dry ingredients.
  2. Fold in the chocolate chunks or chocolate chips.
  3. Fill the muffin tins all the way full to the top. You might feel like they’re going to overflow but they will rise really high!
  4. Bake and then open the oven doors and turn off the oven at the end to allow them to settle before moving thus avoiding the dreading falling of the domed tops. 

How to Prep Zucchini for Zucchini Muffins

Shred the zucchini: Start by finely grading the zucchini with a cheese grater. Use a smaller side if you have a few options of shredding size. This recipe calls for 1 3/4 cup of shredded zucchini, which ends up being about two small to medium zucchini.

NEVER Dry the zucchini: Once it’s shredded, add that baby right into the wet ingredients and stir to combine (don’t use a whisk for this part as the strings will get caught in the whisk!)

Do I Have to Peel the Zucchini?

No, you don’t want to peel the zucchini for these chocolate chip zucchini muffins. Though it might seem like you need to, it actually gets absorbed into the batter because it’s not a super thick skin. Don’t worry about peeling!

Can I Shred the Zucchini in Advance? 

If you want to save some time later on, you can shred your zucchini in advance. Grate the zucchini and place in a ziploc then into the freezer. Defrost until just barely soft again so it wont gather too many extra juices and proceed as normal.


a tall double chocolate zucchini muffin with mini chocolate chips sitting on a wooden counter being unwrapped from a paper muffin liner

Tips for Making Chocolate Zucchini Muffins

Add some extra chocolate chips or chocolate chunks to the top of the batter before you put pop the muffins in the oven for some extra appetite appeal!

Fold, fold, fold! Muffins are finicky and do not want to be messed with so instead of stirring (never use a mixer) switch to a rubber spatula and fold!

Let them rest. Muffins love to have a second to let the leavening agents activate, so pour the batter into tins and then pre heat the oven so the batter can rest for 15-30 minutes. 

Let them cool for a bit and serve them warm! Or cold is good too. You can keep them in an air tight container for up to 1 week.

a tall double chocolate zucchini muffin with mini chocolate chips sitting on a wooden counter being unwrapped from a paper muffin liner


More Easy Muffin Recipes: 

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a tall double chocolate zucchini muffin with mini chocolate chips sitting on a wooden counter being unwrapped from a paper muffin liner

Double Chocolate Zucchini Muffins

4.5 from 38 votes
Prep Time: 15 minutes
Cook Time: 13 minutes
Total Time: 28 minutes
Servings: 12
These Double Chocolate Zucchini Muffins are a great way to use those zucchinis from your garden! They are so moist and chocolatey!


  • 1 1/2 cups Flour plus 1 tablespoon
  • 1/2 cup Dutch Process Cocoa Powder
  • 1/2 teaspoon Baking Soda
  • 1 teaspoon Baking Powder
  • 1/2 teaspoon Salt
  • 1/2 cup Vegetable Oil
  • 1/4 cup Sour Cream see note
  • 2 large Eggs
  • 1 cup Sugar see note
  • 1 Teaspoon Vanilla Extract
  • 2 cups Zucchini very finely grated, (about 2 zucchini)
  • 1 cup Mini Semi Sweet Chocolate Chips divided


  • In a large bowl, whisk together the flour, cocoa powder, baking soda, baking powder and salt. Set aside.
  • In a medium bowl, whisk together the oil, sour cream, eggs, vanilla, and white sugar.
  • Stir the zucchini in and then pour the wet ingredients into the dry ingredients along with 3/4 cup of mini chocolate chips (Reserve a few of the chocolate chips to sprinkle on top of the muffins) and using a rubber spatula, fold until just combined.
  • Divide batter evenly into muffin tins, filling all the way full. Place a few reserved chocolate chips on top of each muffin.
  • Preheat oven to 350° F. Line every other hole in 2 12 cup muffin tins with cupcake liners. See note. Set the batter filled cups aside to rest while the oven heats. See post under "tips"
  • Bake for 15 minutes at 350° . Touch the tops and if they don't sink in they are done (or until toothpick comes out clean or with just a few moist crumbs attached). Turn off the oven and open the door, gently sliding the rack out a little. Let them sit for a good 2-3 minutes then remove to cool on the counter on a wire rack.


  • You do not have to do every other hole but it helps the air to circulate and give a taller dome to the muffins.
  • Keep in an airtight container at room temperature for 3 days or in the freezer for up to 1 month.
  • You can use 1/4 cup brown sugar and 3/4 cup white sugar if you're looking for a little more chew to the muffin tops
Out of sour cream? Just use plain yogurt 🙂
Nutrition Facts
Double Chocolate Zucchini Muffins
Amount Per Serving (1 cake)
Calories 408 Calories from Fat 171
% Daily Value*
Fat 19g29%
Saturated Fat 13g81%
Trans Fat 1g
Polyunsaturated Fat 1g
Monounsaturated Fat 4g
Cholesterol 36mg12%
Sodium 170mg7%
Potassium 322mg9%
Carbohydrates 53g18%
Fiber 4g17%
Sugar 25g28%
Protein 7g14%
Vitamin A 129IU3%
Vitamin C 3mg4%
Calcium 67mg7%
Iron 3mg17%
* Percent Daily Values are based on a 2000 calorie diet.

A picture of a double chocolate zucchini muffin with chocolate chips on top



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Healthy Habits That Help Me!

About the authors

carrian feik cheney oh sweet basil

Cade and Carrian have three children and love to spend time together whether it’s vacationing or snuggled up on the couch for a good movie.

And this family especially loves to eat.

They love everything from the keep you fit and healthy to the get out your sweat pants indulgent and everything in between.

But most of all, they love the memories made, shared and treasured and it’s all thanks to a meal shared together with loved ones.

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Recipe Rating


  • These are divine. I even added a couple tablespoons of ground flax seed for extra nutrition for my boys. They turned out amazing – super moist and decadent. Wouldn’t even know there was zucchini in it if I hadn’t baked it myself!

    • Reply
    • Hi Megan!! Thank you so much!

      • Reply
  • Fantastic!

    • Reply
    • Thank you!!

      • Reply
  • Hi! Did you update or change this recipe? If so, the previous was our favorite! We tried this recipe and the muffins did not turn out nearly as well. If I’m confused I apologize but if I’m not I’d love to have a copy of the old recipe!

    • Reply
    • Hi Amanda! Yes, we updated it because it was an old recipe from a guest contributor. We no longer have the old recipe. I’m so sorry!

      • Reply
  • One of us has had too much apple juice, I do not see any mention of milk in recipe. Help please

    • Reply
    • Hi Doty! I’m not sure what milk you are referring to. Milk is not listed in the ingredients or mentioned in the instructions. Let me know how I can help!

      • Reply
  • Can I substitute the Greek yogurt for sour cream? Would it be an even swap?

    • Reply
    • Yes, you can make that swap. You don’t want nonfat Greek yogurt though. It’s the fat in the sour cream that makes the muffins so moist and delicious.

      • Reply
  • Will all purpose whole wheat work as well as white whole wheat?
    Thanks in advance!!

    • Reply
    • Yes, it should work just fine. Same measurement!

      • Reply
  • Will these muffins be just as good the next day?I really want to make them and share them with the staff the next day 🙂

    • Reply
    • Yesssss! So good! If I don’t grab one to eat while it’s still warm then I almost prefer them the next day.

      • Reply
  • The zucchini muffins are awesome! I did substitute buttermilk for the yogurt only because that’s what I had.they turned out great😋

    • Reply
    • Thanks for the tip, Charlotte!! So glad you enjoyed them!

      • Reply
  • Beautiful muffins.. Excellent Recipe.

    • Reply
    • Thank you Debbie! We sure love them!

      • Reply
  • Oh too ironic…I was recipe testing chocolate zucchini bread this past weekend using up zucchini from my garden! These look so delicious 🙂

    • Reply

Healthy Habits That Help Me!