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    Home ยป Recipes ยป Muffins

    Chocolate Zucchini Muffins

    July 25, 2023 By Sam 6 Comments

    This post may contain affiliate links. As an Amazon Associate I earn from qualifying purchases. Please read my disclosure policy.
    Jump to Recipe
    collage of chocolate zucchini muffins, top image is a close up of muffin, bottom image of multiple muffins nicely placed on gold wire cooling rack

    You’d never know there are veggies in these chocolate zucchini muffins! My recipe makes incredibly fudgy, moist, and chocolatey muffins. It’s perfect for using up an abundance of zucchini! Recipe includes a how-to video!

    Chocolate zucchini muffins topped with chocolate chips on a metal cooling rack.

    The Tastiest Way to Eat Your Veggies

    If your garden is bursting with zucchini and simply you can’t bear to make one more loaf of zucchini bread, I’ve got you covered! These chocolate zucchini muffins are an easy and tasty way to use up summer zucchini or sneak veggies into a sweet treat. They are moist, fudgy, and incredibly chocolatey, thanks to the zucchini and a few other carefully selected ingredients.

    This recipe comes together in minutes without a mixer, which I love. It’s adapted from my chocolate muffins, and I use the same technique of “blooming” the cocoa powder with hot water here. This simple step yields a more intense chocolate flavor and fudgier texture–it makes a big difference!

    Personally, I love making these in the summer when zucchini is abundant, but really you can make them year-round with grocery store zucchini too. The good thing is, there is not one trace of green in the final product, which means these muffins are great for kids and picky eaters! I can’t wait for you to try them.

    What You Need

    While we are using only a handful of ingredients in this easy recipe, there are a few you should take note of before diving in.

    Overhead view of ingredients including shredded zucchini, cocoa powder, chocolate chips, and more.
    • Zucchini. How many zucchini you’ll need varies widely depending on the size. If using supermarket zucchini, which are often about the size of a cucumber, you can usually get away with a single one. Shred your zucchini, but don’t shred so much that it becomes a pulp. You will also need to blot the excess liquid from the zucchini before adding it to the batter; I provide instructions for this in the recipe notes below. If you’ve made my zucchini roll before, you know how to do this!
    • Oil. I’ve been trying to move away from using canola and vegetable oil in my baking, and using avocado oil in the recipe worked out nicely for me. It’s a neutral oil, which means it doesn’t impart any flavor into the finished product (which we want!).
    • Hot water. This is super important for blooming the cocoa and intensifying its flavor! You want your water to be very hot, steamy, or even boiling.
    • Sour cream. Sour cream adds a rich texture and depth of flavor, and it also helps keep these muffins moist.
    • Cocoa powder. Stick with natural cocoa powder here since we are using baking soda. Using dutch process cocoa could lead to leavening issues; you can read more about this in my natural vs. dutch process cocoa post.

    SAM’S TIP: I always add chocolate chips to my chocolate zucchini muffins, but you can customize yours with other add-ins like nuts, dried fruit, or even just different flavored chips (white chocolate or even peanut butter chips would be good!).

    Remember, this is just an overview of the ingredients I used and why. For the full recipe please scroll down to the bottom of the post!

    How to Make Chocolate Zucchini Muffins

    mixing shredded zucchini into chocolate batter
    1. Shred the zucchini making sure not to go too far that you turn it into a pulp. You can do this with a food processor or cheese grater.
    2. Blot the zucchini with paper towels to absorb any excess moisture, then measure out the amount you need. Gently place the zucchini in the cup; do NOT firmly pack it!
    3. Whisk together all dry ingredients except for the cocoa powder in a large bowl, then set aside.
    4. Add the cocoa powder to a heatproof bowl, then pour in your steaming hot water. Whisk until the mixture is combined. This “blooms” the cocoa, which gives the chocolate zucchini muffins a rich chocolate flavor.
    5. Add the remaining wet ingredients to the cocoa powder mixture and whisk until smooth and well-combined.
    6. Gently fold the wet ingredients into the dry ingredients until 50% combined. At this point, fold in the zucchini and chocolate chips and continue to fold until just-combined.
    7. Divide the muffin batter into a lined 12-count muffin tin. An ice cream scoop works nicely for this! Top with additional chocolate chips and bake until a toothpick pierced in the center of a muffin comes out with moist crumbs.
    8. To prevent the muffin liners from becoming soggy, allow the muffins to cool for just 5-10 minutes in the pan before carefully removing to a cooling rack.

    SAM’S TIP: Be careful to not over-mix the muffin batter when combining the wet and dry ingredients (and whatever you do, do NOT use an electric mixer!). Over-mixed muffins will turn out dense instead of moist and tender.

    Overhead view of chocolate muffins made with zucchini on a metal cooling rack.

    Frequently Asked Questions

    How should I store them?

    You can store these muffins in the fridge or at room temperature. They will last for up to a week in the fridge, but will only last a few days at room temperature (three days at most). You can also freeze your muffins for a grab-and-go breakfast or snack!

    Are chocolate zucchini muffins healthy?

    While zucchini itself is high in vitamins, fiber, and antioxidants, we can’t exactly skip over the fact that they also contain a fair amount of sugar and fat. I do like to use olive oil for a healthier fat, but still, these are meant to be a sweet breakfast treat or dessert. They can certainly be part of a healthy diet if enjoyed in moderation though!

    Chocolate muffin that's been unwrapped and is missing a bite.

    Would you like to see more sneaky hidden veggie recipes? Let me know in the comments!

    Enjoy!

    Let’s bake together! I’ll be walking you through all the steps in my written recipe and video below! If you try this recipe, be sure to tag me on Instagram, and you can also find me on YouTube and Facebook

    Chocolate zucchini muffins topped with chocolate chips on a metal cooling rack.

    Chocolate Zucchini Muffins

    You'd never know there are veggies in these chocolate zucchini muffins! My recipe makes incredibly fudgy, moist, and chocolatey muffins. It's perfect for using up an abundance of zucchini!
    Recipe includes a how-to video!
    5 from 2 votes
    Print Pin Rate
    Prevent your screen from going dark
    Course: Breakfast, muffins, quick bread
    Cuisine: American
    Prep Time: 15 minutes minutes
    Cook Time: 17 minutes minutes
    Total Time: 32 minutes minutes
    Servings: 12 muffins
    Calories: 205kcal
    Author: Sam Merritt

    Ingredients

    • 1 cup (125 g) all-purpose flour
    • ½ cup (100 g) granulated sugar
    • ¾ teaspoons baking soda
    • ¼ teaspoon salt
    • ¼ cup (25 g) natural cocoa powder
    • ¼ cup (59 ml) steaming hot or boiling water
    • ¼ cup (59 ml) avocado oil (see note)
    • ½ cup (120 g) sour cream
    • 1 large egg lightly beaten
    • 1 teaspoon vanilla extract
    • ¾ cup (130 g) semisweet chocolate chips (plus additional for topping, if desired)
    • ¾ cup (98 g) shredded zucchini – blot dry after shredding (see note)

    Recommended Equipment

    • Mixing bowls
    • Muffin tin

    Instructions

    • Preheat your oven to 375F (190C) and line a 12-count muffin tin with paper liners. Set aside.
    • Combine flour, sugar, baking soda and salt in a large mixing bowl and whisk to combine.
      1 cup (125 g) all-purpose flour, ½ cup (100 g) granulated sugar, ¾ teaspoons baking soda, ¼ teaspoon salt
    • Pour cocoa powder into a separate, medium heatproof bowl and pour steaming hot water overtop and whisk until smooth.
      ¼ cup (25 g) natural cocoa powder, ¼ cup (59 ml) steaming hot
    • Add oil and whisk (the mixture will separate a bit, this is fine).
      ¼ cup (59 ml) avocado oil
    • Add sour cream, egg, and vanilla extract and whisk until smooth and well-combined.
      ½ cup (120 g) sour cream, 1 large egg, 1 teaspoon vanilla extract
    • Add the flour mixture to the wet ingredients and use a spatula to gently fold until about halfway combined. Then, add chocolate chips and shredded zucchini and continue to gently fold ingredients until completely combined – do not over-mix or muffins will be dense and rubbery.
      ¾ cup (130 g) semisweet chocolate chips, ¾ cup (98 g) shredded zucchini – blot dry after shredding
    • Evenly divide batter into prepared muffin tin and top with additional chocolate chips, if desired.
    • Bake in center rack of 375F (190C) oven for 17-18 minutes and toothpick inserted in center comes out clean or with moist, fudgy crumbs (not wet batter).
    • Allow muffins to cool in the tin for 5-10 minutes before carefully removing to a cooling rack to cool completely before enjoying.

    Notes

    Oil

    May substitute vegetable or canola oil, or even olive oil.

    Zucchini

    Finely shred the zucchini, but not so fine that it becomes a pulp. To blot dry, simply take a wad of paper towels and press firmly into the zucchini until most of the excess moisture is removed. Do not firmly pack zucchini into the measuring cup.

    Storing

    Store in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week. To freeze, wrap in plastic wrap and freeze for up to 3 months.

    Nutrition

    Serving: 1muffin | Calories: 205kcal | Carbohydrates: 24g | Protein: 3g | Fat: 11g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 5g | Trans Fat: 0.01g | Cholesterol: 20mg | Sodium: 128mg | Potassium: 140mg | Fiber: 2g | Sugar: 13g | Vitamin A: 101IU | Vitamin C: 1mg | Calcium: 24mg | Iron: 2mg

    Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.

    Tried this recipe? Show me on Instagram!Mention @SugarSpun_Sam or tag #sugarspunrun!

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    Reader Interactions

    Comments

    1. Smrithi

      September 19, 2024 at 5:08 am

      Hi, the recipe looks great! Just wanted to know if i could sub the sour cream for plain yoghurt and the granulated sugar with brown sugar in a 1:1 ratio?

      Reply
      • Sam

        September 24, 2024 at 7:26 am

        Hi Smrithi! Plain greek yogurt could work as a substitute for the sour cream. Using brown sugar will create a little bit more moisture but I think the muffins could still turn out. ๐Ÿ™‚

        Reply
    2. Charlotta

      July 26, 2023 at 2:45 pm

      Looks delicious!
      Any tips on using frozen zucchini?

      Reply
      • Sam

        July 26, 2023 at 9:08 pm

        Hi Charlotta! If it is frozen and shredded, I would probably thaw it and blot it dry like you do with the fresh zucchini. ๐Ÿ™‚

        Reply
        • Brownyen

          August 05, 2023 at 5:59 pm

          5 stars
          Absolutely delish! There’s no bite from the zukes so it’s impossible to tell!

        • Sam

          August 07, 2023 at 11:17 am

          I’m so glad you enjoyed it so much! ๐Ÿ™‚

    5 from 2 votes (1 rating without comment)

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    The author (Sam) in blue shirt holding donut Hi, I'm Sam! I'm dedicated to bringing you sweet, simple, and from-scratch dessert recipes. My life may or may not be controlled by my sweet tooth. Send help (or chocolate). Read more about me.

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