A partially eaten chocolate chip zucchini muffin on a white plate, showing the moist interior.

25-Minute Chocolate Chip Zucchini Muffins – Moist &

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Written by Caroline Hayes

August 11, 2025

You know those summer mornings when your garden is practically throwing zucchini at you? That’s when I whip up a batch of my favorite chocolate chip zucchini muffins. These little guys are the perfect way to sneak veggies into a breakfast your kids will actually beg for. I still remember the first time my niece – who famously rejects all things green – took a bite and asked for seconds! The magic happens when you shred fresh zucchini right into the batter. It makes the muffins crazy moist while that handful of chocolate chips keeps everyone smiling. I always make extras to stash in the freezer – they’re lifesavers for those frantic back-to-school mornings when you need a quick breakfast on the go.

Why You’ll Love These Chocolate Chip Zucchini Muffins

Trust me, once you try these chocolate chip zucchini muffins, they’ll become your summer baking staple. Here’s why:

  • Magically moist texture – The fresh zucchini keeps these muffins tender for days, without making them soggy (just wait till you try them warmed with a pat of butter!)
  • Dream come true for moms – You’ll feel like a ninja slipping veggies into something your kids happily devour (my toddler calls them “special chocolate muffins”)
  • Freezer power – They thaw perfectly overnight for quick breakfasts, making back-to-school mornings way less chaotic
  • One bowl wonder – Just whisk, stir, and bake – no fancy equipment or messy cleanup involved
  • Crowd-pleasing flavor – The warm cinnamon and melty chocolate make these equally perfect for summer zucchini baking sessions or weekend brunches

The best part? Even though they taste like dessert, I can feel good serving these anytime – including for breakfast!

Ingredients for Chocolate Chip Zucchini Muffins

Gather these simple ingredients – most are pantry staples! The beauty of these muffins is how effortlessly they come together. Here’s what you’ll need for a perfect dozen:

  • 1 1/2 cups grated zucchini (about 1 medium zucchini, squeezed dry in a clean towel)
  • 1/2 cup melted butter or vegetable oil (your choice – see my notes below!)
  • 1/2 cup granulated sugar
  • 1/4 cup packed brown sugar (light or dark both work – I prefer dark for extra molasses flavor)
  • 2 large eggs, at room temperature
  • 1 tsp pure vanilla extract
  • 1 1/2 cups all-purpose flour (or whole wheat for a healthier twist)
  • 1 tsp baking soda
  • 1/2 tsp fine sea salt
  • 1 tsp ground cinnamon (my secret touch)
  • 1/2 cup chocolate chips (plus extra for sprinkling on top if you’re feeling fancy)

Ingredient Notes & Substitutions

Now for my grandma’s wisdom about these ingredients – some options can make or break your muffins! Butter gives that classic rich bakery taste, while oil keeps them extra moist longer (great for meal planning). If you use whole wheat flour, expect a denser, heartier texture – I often use half whole wheat, half white as a compromise. And please, squeeze that zucchini like you mean it – excess moisture makes for sad, soggy muffins. Lastly, splurge on quality chocolate chips; those melty pools of chocolate make every bite special!

How to Make Chocolate Chip Zucchini Muffins

Now for the fun part – turning that bowl of grated zucchini into fluffy, chocolate-studded goodness! This one-bowl method is so simple you’ll have the batter ready before your oven finishes preheating. Just follow these easy steps for muffins that rise perfectly every time. Believe me, I’ve made enough batches over the years to know these tricks by heart!

Step-by-Step Instructions

First things first – preheat that oven to 350°F (175°C). Trust me, giving it plenty of time to heat up makes ALL the difference in getting those perfect domed tops. While it’s warming up, grab your favorite mixing bowl (I use my trusty stoneware one) and let’s get started.

  1. Squeeze it real good – Take that beautifully grated zucchini and wrap it in a clean kitchen towel. Now wring it out like you’re trying to get the last drops of water from a swimsuit! You’ll be surprised how much liquid comes out – this step prevents soggy muffin sadness.
  2. Mix the wet team – In your bowl, whisk together the melted butter (or oil), both sugars, eggs, and vanilla until smooth. It should look like golden sunshine swirling around – if you see little sugar granules still, just whisk a bit longer.
  3. Bring in the dry crew – Dump in the flour, baking soda, salt, and cinnamon all at once. Here’s my trick: give it about 10 stirs until you still see some flour streaks – that’s when you KNOW you haven’t overmixed!
  4. Zucchini & chips unite – Gently fold in your squeezed zucchini and chocolate chips (save a handful of chips for the top if you want that bakery-style look). The batter will be thick but spoonable – this is exactly what we want!
  5. Portion with love – Spoon the batter into lined muffin cups, filling each about 3/4 full. I like using an ice cream scoop for even portions. Sprinkle those reserved chips on top for extra chocolatey goodness.
  6. Bake to perfection – Pop them in the oven for 20-25 minutes. Start checking at 20 – they’re done when a toothpick comes out with just a few moist crumbs (no wet batter!) and the tops spring back when lightly pressed.

Pro tip from my many trial runs: let the muffins cool in the pan for 5 minutes before transferring to a wire rack. This prevents torn muffin tops (we’ve all been there)! The hardest part? Waiting at least 10 minutes before digging in – but oh, that first warm bite with melty chocolate is SO worth it.

Tips for Perfect Chocolate Chip Zucchini Muffins

After baking hundreds of these muffins (my kids never seem to tire of them!), I’ve picked up some foolproof tricks to make them absolutely perfect every single time. Here’s what I’ve learned through years of trial, error, and happy little taste-testers:

  • Grate it just right – Use the medium holes on your box grater for zucchini. Too fine and it disappears; too coarse and you’ll get weird stringy bits. And whatever you do, don’t peel it first – that gorgeous green skin adds nutrients and pretty flecks!
  • Wring it out like a sponge – After grating, bundle that zucchini in a clean kitchen towel and squeeze with all your might (it’s oddly satisfying!). I usually get about 1/4 cup of liquid per zucchini – skipping this step is why most zucchini baked goods turn out soggy.
  • Check early, check often – Ovens lie! Start testing at 20 minutes – if the toothpick comes out clean, they’re done even if the timer says otherwise. The tops should spring back when gently pressed. Overbaking is the enemy of moist muffins.
  • Cool like a pro – Let them rest in the pan just 5 minutes before moving to a wire rack. This prevents steam from making the bottoms damp while keeping those gorgeous domed tops intact. Try to resist eating them immediately – they set perfectly in about 15 minutes.

One last bonus tip from my grandma’s playbook: if your muffins seem too sweet (hey, not everyone has my sweet tooth!), reduce the white sugar by 2 tablespoons and add an extra pinch of cinnamon. It balances everything out beautifully!

Freezing & Storage Tips

Honestly, freezing these chocolate chip zucchini muffins is my secret weapon for meal planning! I always make a double batch on lazy Sunday afternoons – that way we’ve got grab-and-go breakfasts ready whenever we need them. Here’s how to keep them tasting fresh:

  • Cool completely first – I learned the hard way that warm muffins = freezer burn. Let them sit on the counter until no warmth remains (about an hour).
  • Wrap like you mean it – I individually wrap each muffin in plastic wrap, then stash them in a freezer bag. Press out all the air – this keeps them fresh for up to 3 months!
  • Thaw smart – For back-to-school mornings, just pull one out the night before (they’ll defrost perfectly by breakfast). In a hurry? 30 seconds in the microwave revives that just-baked warmth and makes the chocolate chips gooey again.

These freezer friendly muffins are lifesavers during hectic weeks – I’ve even packed frozen ones in lunchboxes where they thaw by noon for a sweet surprise!

Nutritional Information

Just a quick note before we dive in – these numbers are estimates since ingredients can vary (especially if you tweak the recipe like I sometimes do!). Here’s the nutritional breakdown per muffin based on my standard recipe with butter and semi-sweet chocolate chips:

  • Calories: 180
  • Fat: 8g (4g saturated)
  • Carbohydrates: 25g
  • Protein: 3g

Remember, using oil instead of butter lowers the saturated fat slightly, while whole wheat flour adds a bit more fiber. But honestly? When my kids are happily eating zucchini, I don’t stress about perfect numbers – it’s all about balance!

Frequently Asked Questions

Over the years, I’ve gotten some great questions from readers about these chocolate chip zucchini muffins – here are the ones that come up most often with my tried-and-true answers!

Can I use frozen grated zucchini?

Technically yes, but fresh is SO much better. Frozen zucchini gets mushy when thawed and releases more water. If you must use frozen, thaw completely, squeeze out allll the liquid (I’m talking give-it-all-you’ve-got squeezing!), then measure after draining. You’ll need about 1 3/4 cups frozen to equal 1 1/2 cups squeezed.

How do I make these gluten-free?

Swap the flour 1:1 with a good gluten-free blend (I love Bob’s Red Mill 1-to-1). The muffins might be a tad denser, but still delicious! Some folks add 1/4 tsp xanthan gum for better texture, but I’ve skipped it with no disasters.

What’s the best oil substitute for butter?

For maximum moisture, use melted coconut oil (gives a faint tropical vibe) or light olive oil (pick a mild one!). If you want extra nutrition, try avocado oil – just don’t use strong-flavored oils that’ll overpower the chocolate.

Can I reduce the sugar amount?

Absolutely! I’ve successfully cut the total sugar to 1/2 cup (mix of white and brown). The muffins are less sweet but still tasty, especially if you use good quality chocolate chips. Bonus: the zucchini’s natural sweetness shines more!

How long do these muffins stay fresh?

At room temp: 3 days in an airtight container (if they last that long!). Refrigerated: about 5 days. Frozen: up to 3 months for best quality. Pro tip: slide a slice of bread in the container to keep them extra moist!

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Chocolate Chip Zucchini Muffins

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Moist, kid-friendly muffins that use summer zucchini. Freezer-friendly for lunchboxes and back-to-school.

  • Author: Caroline Hayes
  • Prep Time: 15 min
  • Cook Time: 25 min
  • Total Time: 40 min
  • Yield: 12 muffins 1x
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Ingredients

Scale
  • 1 1/2 cups grated zucchini
  • 1/2 cup melted butter or oil
  • 1/2 cup sugar
  • 1/4 cup brown sugar
  • 2 eggs
  • 1 tsp vanilla extract
  • 1 1/2 cups all-purpose flour (or whole wheat flour)
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 1 tsp cinnamon
  • 1/2 cup chocolate chips

Instructions

  1. Preheat oven to 350°F. Line a muffin tin with liners.
  2. Squeeze excess moisture from grated zucchini.
  3. Mix butter/oil, sugars, eggs, and vanilla in a bowl.
  4. Add flour, baking soda, salt, and cinnamon. Stir until combined.
  5. Fold in zucchini and chocolate chips.
  6. Divide batter into muffin cups.
  7. Bake for 20-25 minutes or until a toothpick comes out clean.

Notes

  • Use butter for richer flavor or oil for extra moisture.
  • Freeze muffins for quick breakfasts or snacks.

Nutrition

  • Serving Size: 1 muffin
  • Calories: 180
  • Sugar: 12g
  • Sodium: 180mg
  • Fat: 8g
  • Saturated Fat: 4g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 25g
  • Fiber: 1g
  • Protein: 3g
  • Cholesterol: 40mg

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Caroline Hayes is the heart and soul behind Recipes To Keep. Inspired by her grandmother's overflowing recipe box from rural Ohio, Caroline has dedicated herself to preserving timeless American classics. She is a passionate home cook and recipe archivist who specializes in testing and perfecting cherished dishes for the modern kitchen. Her goal is to ensure every recipe is a "keeper"—reliable, delicious, and ready to become a part of your family's story.

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