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Home / Recipes

Double Chocolate Zucchini Muffins

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By: Madeline Tague

Updated: March 6, 2025

This site may contain affiliate links. Please read my disclosure policy.

Use that extra zucchini to make a batch of Double Chocolate Zucchini Muffins. They are rich, chocolatey and super moist thanks to the shredded zucchini.

Above view of chocolate chip zucchini muffins on a cooling rack

Weeknight-easy

Beginner-friendly

You’ll Learn: How to batch, store, and reheat for meal prep

Worth It: You’ll want to make two batches

Bonus: Easy to tailor to common diets

Above view of chocolate chip zucchini muffins on a cooling rack

Why You’ll love this Recipe

  • Use up your garden zucchini – By the time July or August rolls around our garden is absolutely overflowing with zucchini. That is when I start to incorporate shredded zucchini into sweet treats!
  • Moist and delicious muffins – The shredded zucchini helps keeps baked good nice and moist, but it is not dense so it also makes them fluffy.
  • Meal prep favorite – I love making these for the week ahead. They are the perfect pick me up for an afternoon treat!
chocolate zucchini muffins stacked up on a cutting board

How do you shred zucchini for muffins?

The easiest way to shred your zucchini to use it in baking is to use the largest grate on a box grater. These are traditionally used for grating cheese, but also work really well for shredding soft vegetables.

You can also use the shred blade on a food processor. This is a good option if you need to shred more than one zucchini at a time.

Serving Suggestions

I love to serve these chocolate zucchini bread muffins as a sweet afternoon snack. You can add a little more protein to the muffins by serving them with some peanut butter or almond butter.

To make them taste like they are fresh from a bakery just gently warm them up in the toaster oven or microwave before serving and the chocolate chips will be perfectly melty.

I love making summer desserts. If you like these zucchini muffins, try out this zucchini bread, peach blueberry crisp, or s’mores cookies.

Above view of ingredients for chocolate zucchini muffins

Ingredients

  • Fresh zucchini – the zucchini creates such a great texture for the muffins while also keeping them moist
  • Egg at room temperature – the room temperature egg helps ensure an even bake
  • Granulated sugar – the sugar sweetens the chocolate muffin for the perfect taste. You can try maple syrup or honey instead, but you may want to decrease the amount of oil.
  • Neutral tasting vegetable oil – if you want to use coconut oil, be sure to use refined coconut oil
  • Vanilla extract – the vanilla enhances all of the flavors in your muffin
  • All purpose flour – the flour is the base of your muffin
  • Unsweetened cocoa powder – the cocoa powder adds the delicious chocolatey taste to your muffins
  • Baking soda – baking soda is the key to the rise on your muffins. I find this recipe does not need baking powder.
  • Kosher salt – I use kosher salt, but if you use table salt, cut the amount in half
  • Semi-sweet chocolate chips – I like to use semi-sweet, but you can use dark or milk chocolate if you prefer

Ingredient Substitutions

If you want to make gluten-free chocolate zucchini muffins, you can use a 1:1 gluten free flour substitute. Oat flour could also work.

To make these muffins dairy-free, just use vegan chocolate chips instead of standard semi sweet chocolate chips. If you want them vegan, you could try a flax egg instead of a regular egg.

You can also replace the chocolate chips with chopped chocolate, white chocolate or nuts like walnuts or pecans.

Step by step assembly of zucchini chocolate chip muffins

How to Make

step 1: Prepare muffin tin and grate zucchini

To begin, preheat the oven to 350F and line 10 muffin tin cups with cupcake liners.

Then, grate zucchini on a cheese grater. Use a tea towel or paper towel to squeeze out the excess moisture from the zucchini.

Really squeeze it to make sure you get out all of the moisture.

step 2: Prepare Batter

Pour grated zucchini into a large bowl with the egg, sugar, vegetable oil and vanilla extract. Stir it in with the whisk. In a separate bowl combine the flour, cocoa powder, baking soda and salt. Fold dry ingredients into wet ingredients with a rubber spatula.

The batter will be thicker than a standard muffin batter.

step 3: Bake and cool muffins

Mix in the chocolate chips and place ¼ cup of batter in each of 10 muffin cups. Top with more chocolate chips.

Bake at 350F for 22-24 minutes until a toothpick comes out clean. Transfer to a wire rack. Allow the muffins to cool completely on the cooling rack and enjoy.

zucchini chocolate chip muffins on a serving plate

Storage, Freezing and Reheating

I prefer to store these muffins in an airtight container in the refrigerator. They get even fudgier in the fridge! Reheat in a toaster oven or microwave to enjoy them warm.

You can store the cooked muffins in the freezer for up to 3 months. All them to thaw in the fridge or on the counter and then reheat to enjoy!

Check out these other muffin recipes

  • Applesauce Muffins
  • Coffee Cake Muffins
  • Blueberry Yogurt Muffins
  • Mini Chocolate Chip Banana Muffins
  • Apple Cinnamon Muffins
  • Orange Cranberry Muffins
You Can Find The Full Recipe Below. If You Make This Recipe, Please Rate And Review It In The Comments, Or Share It With Me On Instagram!

Images by Ella from Alpine Ella.

You can find the full recipe below. If you make this recipe, please rate and review it in the comments, or share it with me on Instagram!

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Above view of chocolate chip zucchini muffins on a cooling rack

Recipe

Double Chocolate Zucchini Muffins

5 from 7 votes
Make fluffy and rich chocolate muffins with shredded zucchini
Recipe By: Madeline Tague
Prep: 10 minutes minutes
Cook: 24 minutes minutes
Print Review Pin It SaveSaved!
Servings: 10 muffins

Ingredients

  • 1 large zucchini or 2 small about 2 cups grated zucchini with the liquid squeezed out
  • 1 egg
  • ¾ cup granulated sugar
  • ½ cup neutral vegetable oil
  • 1 tsp vanilla extract
  • 1 cup all purpose flour
  • ½ cup unsweetened cocoa powder
  • 1 tsp baking soda
  • ½ tsp salt
  • ½ cup semi sweet chocolate chips + more for topping
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Instructions

  • Preheat oven to 350F and line 10 muffin tin cups with muffin liners.
  • Grate zucchini on a cheese grater. Use a tea towel to squeeze out the excess moisture from the zucchini. Really squeeze it! Pour grated zucchini into a large mixing bowl with the egg, sugar, vegetable oil and vanilla extract.
  • In a separate bowl combine the flour, cocoa powder, baking soda and salt. Fold dry ingredients into wet with a rubber spatula. The batter will be thicker than a standard muffin batter.
  • Mix in the chocolate chips and place ¼ cup of batter in each of 10 muffin cups. Top with more chocolate chips.
  • Bake at 350F for 22-24 minutes. Cool completely and enjoy.

Recipe Notes

  • To make gluten free you can replace the all purpose flour with a 1:1 gluten free all purpose flour
  • Replace the chocolate chips with chopped walnuts or pecans for an added crunch
  • You can use chopped chocolate or white chocolate chips in place of regular chocolate chips

Nutrition Information

Serving: 1g, Calories: 265kcal (13%), Carbohydrates: 33g (11%), Protein: 3g (6%), Fat: 15g (23%), Saturated Fat: 4g (25%), Polyunsaturated Fat: 6g, Monounsaturated Fat: 3g, Trans Fat: 0.1g, Cholesterol: 16mg (5%), Sodium: 235mg (10%), Potassium: 163mg (5%), Fiber: 2g (8%), Sugar: 21g (23%), Vitamin A: 63IU (1%), Vitamin C: 4mg (5%), Calcium: 20mg (2%), Iron: 1mg (6%)

This website provides approximate nutrition information for convenience and as a courtesy only. Nutrition data is gathered primarily from the USDA Food Composition Database, whenever available, or otherwise other online calculators.

Did you make my Double Chocolate Zucchini Muffins?

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Madeline Tague

Hi, I’m Madeline! I am so excited to share my healthy and approachable recipes with you. Here you will find simple, comforting recipes that the whole family will enjoy. Turn on your favorite playlist or podcast and let’s get cooking!
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5 from 7 votes

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Recipe Rating




16 responses

  1. Jenn
    September 29, 2025

    5 stars
    Great recipe! My kids are addicted. Zu muffins for weeks!

    Reply
    1. Madeline
      September 30, 2025

      Woohoo! That is a win!

      Reply
  2. Gracyn
    September 3, 2025

    5 stars
    Have made these twice in the last week. Both times were told they were some of the best muffins they’ve ever had and have been asked by multiple people to share the recipe. SO good

    Reply
    1. Madeline
      September 3, 2025

      Aww love to hear this!

      Reply
  3. Camille
    March 18, 2025

    These are probably the best muffins I’ve made! I find that so many muffin recipes out there are dense and dry, but these came out so moist and chocolately. I don’t ever comment on recipes but had to hop on here to recommend!

    Reply
    1. Madeline
      March 19, 2025

      Huge compliment! Thank you for leaving a review – it means so much!

      Reply
  4. Nao
    October 18, 2024

    5 stars
    This recipe is a favorite in our house! I don’t have a muffin pan so I make it in a loaf pan (50 min @ 350 – though sometimes I do it a little bit lower temp and longer if I have time). I also reduce the amount of sugar from 3/4c to 1/2c and use a lot of zucchini (probably more than what was intended in the recipe, but it works!).

    Reply
  5. Michelle R.
    August 9, 2024

    5 stars
    These are excellent! Not too sweet and not too many. I ended up with 11 muffins. My granddaughter said they were the best muffins she’s had in her whole life. She’s 4! 😊

    Reply
  6. Meaghan
    August 8, 2024

    These are so easy and so good! I’d never baked anything with zucchini before, but these muffins turned out so well. They’re very dense, but not in a “stick in your mouth and impossible to enjoy” kind of way. Will definitely be making again!

    Reply
    1. Madeline
      August 8, 2024

      Thanks, Meaghan! Glad you liked them.

      Reply
  7. Meg
    September 5, 2023

    5 stars
    These are absolutely amazing for such a quick and simple recipe. Made once and they instantly became a staple. Thank you!

    Reply
    1. Madeline
      September 5, 2023

      AWESOME! Thanks so much, Meg!

      Reply
  8. Kayla Simpson
    August 24, 2023

    5 stars
    Made these tonight with zucchini from my uncle’s garden. They are soooo good. Moist, rich, and delicious if you’re a chocolate lover. Easy to make also.

    Reply
    1. Madeline
      August 24, 2023

      AWESOME! Thanks, Kayla!

      Reply
  9. Dani lutz
    August 22, 2023

    5 stars
    Just made these and they came out EXCELLENT! I used a gluten free flour blend, and you would have no idea that these were gluten free:) this is a new favorite recipe, I’m going to make a huge batch and free for later!

    Reply
    1. Madeline
      August 22, 2023

      YAY! Makes me so happy to hear. Thanks for the review, Dani!

      Reply

Welcome

Hi, I’m Madeline – food blogger and recipe developer based just outside Philadelphia. Join me for simple, comforting recipes designed for the whole family. Turn on your favorite playlist or podcast, and let’s get to cooking!

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