Chocolate Zucchini Muffins are soft and fluffy muffins! They come together in one bowl, and are moist thanks to the zucchini and loaded up with chocolate flavours.
After making my Zucchini Muffins, I knew I had to make a chocolate version soon.
These muffins are soft and fluffy and full of soo much goodness. I was really surprised how chocolate-y they are, you can't taste the zucchini at all!
For more muffin recipes, try Lemon Raspberry Streusel Muffins, Bakery Style Chocolate Chip Muffins, and Peach Streusel Muffins.
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Ingredients Notes
Full recipe and ingredients are in the recipe card below. Feel free to scroll through this section to view certain key ingredients we’re using!
- Cocoa powder - Make sure to use a natural unsweetened cocoa powder like Hershey's.
- Eggs – Make sure they’re at room temperature before beginning.
- Flour – All-purpose flour is used in this recipe.
- Mini chocolate chips - Adds some extra chocolate into the muffins! I like using mini chocolate chips for this recipe so there's pockets of chocolate in every bite, but you can also use semi-sweet chocolate chips.
- White sugar – I used granulated white sugar for this recipe. Brings sweetness to the muffins.
- Vanilla – Use a good quality vanilla to really enhance the flavours and tie it all together!
- Zucchini – Adds flavourless moisture into the muffins that’s really remarkable and magical in the oven! Shred it on the coarse section of your grater. If there is a lot of moisture coming from it after shredding, gently blot with a paper towel.
Step by step instructions
Here is how to make and bake these Zucchini Chocolate Muffins. You will need a 12 muffin tin, muffin liners, 3 mixing bowls, a spatula, and a whisk.
Step 1 – Prep. Line the muffin tin with 12 liners and set aside. If you need a recommendation, this is my favourite tin. Shred the zucchini on the coarse side of the grater and set aside. Do not blot the zucchini unless an excessive amount of moisture is dripping from it.
Step 2 – Mix dry ingredients. In a large bowl, add the dry ingredients; flour, cocoa powder, sugar, baking soda, baking powder, and salt. Mix together and set aside.
Step 3 – Add wet ingredients. Into the medium bowl add the wet ingredients; eggs, egg yolk, oil, vanilla, and sour cream. Whisk until well combined.
Step 4 – Add in wet ingredients. Add the wet ingredients into the dry. With a spatula, gently mix to create a soft muffin batter. Once there are no dry streaks showing, stop mixing.
Step 5 – Add zucchini. Mix in the shredded zucchini and mini chocolate chips. Do not over-mix!!
Step 6 – Scoop. Evenly divide the batter between 12 liners, they should be almost or all the way full. Sprinkle white sugar and extra mini chocolate chips on top.
Step 7 - Bake. Bake the muffins at 425°F for 6 minutes, then turn the oven down to 350°F and continue baking for 12-16 minutes. Mine took 15 minutes total. The muffins are ready when a toothpick inserted comes out clean.
These chocolate zucchini muffins stay fresh covered at room temperature for a few days, or in the refrigerator in an airtight container for up to 1 week!
Expert Baking Tips
Here are a few expert baking tips from my kitchen to yours
- Use a gram scale. I cannot emphasize this enough! It is the most accurate way of measuring your ingredients in the kitchen. This is one of my favourites.
- Do not over-mix! A big reason muffins don’t rise or turn out tough is because the batter is over-mixed. Once you see no flour streaks, stop mixing.
- You don’t have to peel the zucchini before shredding it.
FAQ
Do I have to add chocolate chips?
No!
Why are my muffins so wet?
Remember that adding zucchini into your bakes is essentially like adding in flavourless moisture. Make sure all of the dry ingredients are measured out properly, I like to use a gram scale for the most accurate measurements.
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Chocolate Zucchini Muffins
Ingredients
- 2 cups all-purpose flour
- 1 1/4 cups white sugar
- 1/2 cup unsweetened cocoa powder
- 1 tsp baking soda
- 2 tsp baking powder
- 1/2 tsp salt
- 2/3 cups oil
- 2 eggs room temperature
- 1 egg yolk room temperature
- 1 tbsp vanilla
- 1 cup sour cream room temperature
- 1/2 cup mini chocolate chips
- 1 1/2 cups zucchini grated, about 170g
Instructions
- Preheat the oven to 425℉. Line the muffin tin with 12 liners and set aside. Shred the zucchini on the thick side of the grater and set aside.1 1/2 cups zucchini
- In a large bowl, add in the dry ingredients. Mix together and set aside.2 cups all-purpose flour, 1 1/4 cups white sugar, 1/2 cup unsweetened cocoa powder, 1 tsp baking soda, 2 tsp baking powder, 1/2 tsp salt
- Into the medium bowl add in the wet ingredients. Whisk together until well combined.2/3 cups oil, 2 eggs, 1 egg yolk, 1 tbsp vanilla, 1 cup sour cream
- Add the wet ingredients into the dry. With a spatula, mix until a chocolate muffin batter forms. Don't over-mix.
- Add the shredded zucchini and chocolate chips and mix in a few times. Continue mixing until no flour streaks are left. Do not over-mix!!1/2 cup mini chocolate chips, 1 1/2 cups zucchini
- Evenly divide the batter between 12 liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess.
- Bake the muffins at 425°F for 6 minutes. Then turn the oven down to 350°F and continue baking for 12-16 minutes. Mine took 15 minutes exactly. The muffins are ready when a toothpick inserted comes out clean.
- Enjoy!
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