Double Chocolate Zucchini Muffins

Author: Molly Published: 07/09/2026

These muffins are light and tender, bursting with chocolate flavor! Our easy chocolate zucchini muffins are the perfect way to use up that summer zucchini from your garden. The kids absolutely love them for breakfast or an after-school snack. Adding chocolate chips makes them irresistibly delicious, a total win for everyone!

Lately, I’ve been all about zucchini because, during the summer, we always seem to have tons of it. Sometimes neighbors drop bags of zucchini on our porch (so nice of them!), and I can’t resist picking some up every time I hit the farmers market. Zucchini is just so versatile — it works wonderfully in savory dishes and baking alike. Honestly, it usually takes over my kitchen counter when it’s in season, but that’s a good kind of mess!

I’ve shared favorites like zucchini banana bread and zucchini cookies before, and now I’m excited to bring you a delicious twist — chocolate zucchini muffins! Unlike my chocolate zucchini cake, these muffins work for any time of day. We love them, especially the kids — they never stick around for long once I bake a batch.

These easy chocolate zucchini muffins are a must-have in the summertime kitchen — they’re light, tender, and packed with cocoa and melty chocolate chips. Best of all? They sneak in shredded zucchini, so you can feel a little better about indulging. This recipe is quick enough for a weekday breakfast and special enough to pack in a lunchbox or enjoy as a snack. My kids can’t get enough, and when I bake a batch, they always vanish fast.

In this post, I’ll walk you through every step to make these yummy muffins: a simple one-bowl method that’s a breeze, a full list of ingredients, and easy-to-follow instructions. Plus, I’ll share my best tips for getting that perfect muffin texture, easy ingredient swaps (including dairy-free and gluten-free options), and advice on freezing and storing so you can make a big batch ahead and have muffins ready whenever you want. I’ve also included handy photos and a quick video to guide you along.

Get ready for perfectly moist, chocolatey muffins with a soft, fluffy crumb — and the best part? No peeling or wringing out that zucchini! Keep reading and you’ll have a pan of warm, double-chocolate muffins fresh from the oven in no time.

Why They’ll Be a Hit

If you can stir, you can make these! This is a one-bowl muffin recipe that comes together fast and without fuss.
These muffins are amazingly light and fluffy — be warned, you might just reach for seconds.
They’re perfect for grab-and-go breakfasts or snacks, and freeze beautifully so you can bake once and enjoy many times.

We are totally hooked on these muffins! They are delicious, easy, and make the house smell amazing. I’m already dreaming about the next batch!

Ingredients You’ll Need

2 cups all-purpose flour
½ cup unsweetened cocoa powder
¼ cup granulated sugar
¼ cup light brown sugar packed
2 teaspoons baking powder
1 teaspoon baking soda
½ teaspoon salt
1 large egg
5 Tablespoons unsalted butter melted
1 teaspoon pure vanilla extract
1 cup skim milk
¾ cup semisweet chocolate chips
1 cup finely shredded zucchini about 1 medium

Mixing and Baking

Preheat oven to 375°F and grease a muffin tin or line with paper liners.
Melt the butter and set aside.
Finely shred 1 medium zucchini (about 1 cup); no need to peel or squeeze.
In a large bowl, whisk together the flour, cocoa powder, granulated sugar, brown sugar, baking powder, baking soda, and salt.
Add the egg, melted butter, vanilla extract, and milk to the dry ingredients and stir until well combined.
Gently fold in the shredded zucchini and chocolate chips.
Spoon the batter evenly into the prepared muffin cups.
Bake for 20–25 minutes, until a toothpick inserted in the center comes out mostly clean or the tops spring back when touched.
Cool the muffins in the pan for about 10 minutes, then transfer to a wire rack to cool completely.

Baker’s Tips and Tricks

If you like your muffins with a deeper chocolate kick, swap semi-sweet chocolate chips for dark chocolate ones.
For some crunch, toss in a handful of chopped walnuts or pecans — they add a lovely texture and flavor.

Mix-Ins and Substitutions

Want to switch things up or tweak the recipe for dietary needs? Here are some easy, tasty options:

Chocolate: Use dark chocolate chips for a richer, slightly less sweet muffin, or swap in milk or white chocolate chips for a sweeter bite.
Nuts & seeds: Fold in ½ to ¾ cup of chopped walnuts, pecans, or sunflower seeds for some crunch.
Fruits & extras: Add ½ cup dried cherries, raisins, or freeze-dried raspberries for a fruity surprise against that chocolatey backdrop.
Spices: A pinch of cinnamon (½ teaspoon) or ¼ teaspoon instant espresso powder will deepen that chocolate flavor beautifully.
Lower-fat option: Swap 2-3 tablespoons of butter with unsweetened applesauce (just part of it) to cut fat but keep moisture.
Dairy-free/vegan: Use 1 cup plant-based milk, 5 tablespoons neutral oil (like vegetable or canola), and replace the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water, let sit 5–10 minutes).
Gluten-free: Substitute a 1:1 gluten-free flour blend containing xanthan gum. The muffins might be slightly denser but still delicious.
Mini muffins: Use a mini muffin pan and bake for 10-12 minutes at 375°F for perfect bite-sized snacks.
Toppings: Sprinkle extra chocolate chips on top before baking, or drizzle a powdered-sugar glaze on cooled muffins for extra sweetness and shine.

Storage and Freezing

Once your double chocolate zucchini muffins have cooled completely, store them in an airtight container. They keep great on the counter for 5-7 days, but honestly, they usually disappear much sooner here! To keep them fresh and not soggy, I like to add a paper towel at the bottom of the container — it soaks up any extra moisture.

One of the best things about this recipe is how well the muffins freeze. Make a double batch so you always have a stash ready!

Be sure the muffins are fully cooled before placing them in a freezer-safe container. Freeze for up to three months. When you want one, just leave it out to thaw at room temperature, or heat it gently in the microwave for that freshly baked taste.

I bet you’re going to fall in love with these easy chocolate zucchini muffins, just like my family and I have. Nothing beats the smell of warm muffins fresh out of the oven!

Tips

How to Freeze Muffins

Make sure muffins are completely cooled before freezing.
You can wrap each muffin individually in plastic wrap for easier thawing later, or stack them in a freezer bag or airtight container.
Frozen muffins stay delicious for up to three months.
When ready to eat, thaw at room temperature or pop in the microwave for about 20 seconds to warm.

Nutrition Information

Calories: 241kcal (12%), Carbohydrates: 34g (11%), Protein: 4g (8%), Fat: 10g (15%), Saturated Fat: 5g (31%), Cholesterol: 27mg (9%), Sodium: 208mg (9%), Potassium: 293mg (8%), Fiber: 2g (8%), Sugar: 14g (16%), Vitamin A: 245IU (5%), Vitamin C: 2.9mg (4%), Calcium: 78mg (8%), Iron: 2.4mg (13%)

We are not dietitians and recommend you seek a nutritionist for exact nutritional information. The information in the nutrition box is calculated through a program and there is room for error. If you need an accurate count, I recommend running the ingredients through your favorite nutrition calculator.

Common Questions Answered

Can I use frozen shredded zucchini? — Yes! Just make sure to fully thaw and drain or pat dry the zucchini first. Fresh shredded zucchini doesn’t need wringing, but frozen zucchini holds more water and could water down your batter if not drained.

Do I need to peel or squeeze the zucchini? — Nope! Just shred it and toss it right in. No peeling or squeezing needed.

How can I tell when the muffins are done? — A toothpick inserted in the center should come out with a few moist crumbs but no wet batter. The muffin tops should gently bounce back when touched.

Can I reduce the sugar? — Absolutely! You can cut the white or brown sugar by up to 25% without much change to texture. Just keep in mind that cutting more may make the muffins less tender and less rich in chocolate flavor.

What can I use instead of melted butter? — Neutral oils like vegetable or canola oil work great here. Use about 1/3 cup for the 5 tablespoons of butter. You can also swap part of the butter with applesauce to lower fat, but don’t replace it all.

Can I make these vegan? — Yes! Use a plant-based milk, a flax or chia egg (1 tablespoon ground seed mixed with 3 tablespoons water), and vegan butter or oil instead of dairy.

Can I make these gluten-free? — Definitely. Swap in a 1-to-1 gluten-free flour blend that contains xanthan gum for best results. The muffins may be a little denser but still tasty.

How should I store and reheat leftovers? — Keep cooled muffins in an airtight container at room temp for up to 5-7 days. For longer storage, freeze fully cooled muffins in a freezer-safe container up to 3 months. Thaw at room temp or microwave briefly before serving.

Can I add nuts or other mix-ins? — Sure! Fold in up to 3/4 cup of chopped nuts, dried fruit, or different chocolate chips. Chopped walnuts or pecans are classics and add great flavor and texture.