Easy Double Chocolate Zucchini Bread with a Cake Mix

Dark chocolate loaf cake with melted chocolate chips, sliced to reveal dense, moist crumb.

Easy Double Chocolate Zucchini Bread with a Cake Mix

This Easy Double Chocolate Zucchini Bread is a wonderfully moist and rich quick bread that’s your go-to treat during zucchini season. Made with just 4 simple ingredients including a chocolate cake mix, it’s an effortless way to sneak some healthy goodness into a fudgy, chocolatey delight everyone will love!

Hey there! This Easy Double Chocolate Zucchini Bread is a fast and fuss-free recipe that turns fresh summer zucchini into a decadent chocolate loaf bursting with flavor. With only 4 main ingredients—a box of chocolate cake mix, shredded zucchini, eggs, and chocolate chips—this recipe ditches complicated measuring and always delivers a moist, chocolaty bread that cleverly hides the veggies. Perfect for picky eaters, last-minute guests, or just because you want an easy but impressive baking win!

Below, I’ll share the full ingredient list and an easy step-by-step so you can bake this up fast—about 10 minutes prep, 40–45 minutes bake, around 55 minutes total. This recipe makes about 16 thick slices, plus I’ve included my tips to keep your chocolate chips from sinking, suggest substitutions if you want to switch things around, and storage ideas so you can bake ahead or freeze your leftovers. And guess what? You can easily turn the batter into muffins or mini loaves too if you want portable snacks.

  • Quick and pantry-friendly: starts with just one box of chocolate cake mix.
  • Moist and chocolatey: zucchini keeps the bread tender without tasting like a vegetable.
  • Flexible: bake as loaves, muffins, or mini loaves—freezes beautifully.

Why This Recipe Works

This double chocolate zucchini bread is all about easy, forgiving baking that yields consistently delicious results. It only needs a box of chocolate cake mix, shredded zucchini, eggs, and chocolate chips, so there’s almost no measuring and zero stressful steps. The zucchini keeps everything super moist and tender while staying totally hidden beneath the rich chocolate flavor. It’s an excellent way to sneak some veggies into your family’s snack or dessert—much like a classic zucchini bread—without any fuss.

  • Just 4 simple ingredients—perfect for quick pantry baking.
  • Super moist and packed with chocolate thanks to fresh zucchini and extra chocolate chips.
  • Versatile: make classic loaves, chocolate zucchini muffins, or mini loaves. Also freezes well for busy weeks.
  • Kid-friendly and guest-approved—it’s indulgent but easy enough for everyday baking.

Ingredient List

Flat-lay of a chocolate cake mix bag, shredded zucchini, eggs, and mini chocolate chips on a light wood surface.

  • 1 box chocolate cake mix, {13.25 ounces}
  • 1 ½ – 2 cups zucchini, {finely shredded}
  • 3 large eggs
  • 1 cup mini chocolate chips

Step-by-Step Directions

  1. Preheat oven to 350°F; spray two loaf pans with non-stick spray and line the bottoms with parchment or wax paper.
  2. Wash zucchini and finely shred it.
  3. Whisk the eggs in a small bowl.
  4. Toss the mini chocolate chips with 1 tablespoon of the dry cake mix in a small bowl to coat.
  5. In a large bowl, combine the remaining chocolate cake mix, shredded zucchini, and whisked eggs.
  6. Mix with a spoon or spatula until just combined, allowing the batter to loosen as the zucchini releases moisture.
  7. Fold in the coated chocolate chips until evenly distributed.
  8. Divide the batter evenly between the prepared loaf pans and smooth the tops; sprinkle extra chocolate chips on top if desired.

    four-panel collage of zucchini chocolate batter being prepared: shredded zucchini, eggs, cocoa powder, thick batter, and loaf pans ready

  9. Bake for 40–45 minutes, or until a toothpick inserted in the center comes out mostly clean.
  10. Let the loaves cool in the pans for about 10 minutes.
  11. Run a knife along the edges and transfer the loaves to a wire rack to cool completely.

Baking Tips and Tricks

  • Grate the zucchini finely using a box grater or food processor. Small shreds blend best into the batter and keep the texture smooth.
  • To stop chocolate chips from sinking, toss them with a tablespoon of dry cake mix first. It helps them stay suspended in the batter, so every bite has chocolate.
  • Don’t overmix once you add zucchini. Stir just until everything is combined so your bread stays tender; for a quick visual of the right batter texture, see this one-bowl zucchini bread recipe for beginners.
  • For a chocolate boost, sprinkle extra chips on top before baking. You can even add a teaspoon of espresso powder to your batter to deepen the flavor.
  • Give your loaves at least 10 minutes to cool in the pans before removing. This helps them hold their shape perfectly.

Flavor Swaps and Add-Ins

  • Switch up the cake mix: Try devil’s food or fudgy chocolate cake mix for a richer chocolate taste, or pick a gluten-free chocolate cake mix to make this recipe gluten-free.
  • Mix up your mix-ins: Substitute mini chips with white chocolate chips, peanut butter chips, or chocolate chunks. For a fun twist, fold in chopped chocolate sandwich cookies for a cookies-and-cream vibe (see this cookies-and-cream cookie recipe for flavor inspiration). Add a half cup of chopped nuts like walnuts or pecans for a little crunch.
  • Make it richer: Stir 1 teaspoon of instant espresso powder into the batter to amp up the chocolate notes beautifully.
  • Go portable: Bake the batter as muffins (15–18 minutes) or mini loaves (25–30 minutes) for easy grab-and-go treats.
  • Try toppings: Before baking, sprinkle coarse sea salt, extra chocolate chips, or a simple streusel on top for added texture.

Storage and Make-Ahead Tips

Store: After your double chocolate zucchini bread cools completely, keep it fresh at room temperature in an airtight container or zip-top bag for 3 to 4 days.

Freeze: This bread freezes like a dream! Wrap cooled loaves tightly in plastic wrap then foil and freeze up to 3 months. When you’re ready to enjoy, thaw at room temperature and slice.

dense dark chocolate loaf sliced into pieces with chocolate chips on a light wood surface

Common Questions Answered

Can I use a different cake mix flavor?

Sure! While chocolate cake mix gives you that perfect double chocolate zucchini bread, feel free to experiment with devil’s food, yellow cake, or even spice cake mixes. Just note non-chocolate mixes won’t be as rich or chocolaty.

Do I need to peel the zucchini?

Nope! Just wash it well and grate with the skin on. The peel adds moisture, color, and extra nutrients without affecting the flavor. If you’re curious about the why and the how, see this guide to prepping zucchini (when to peel or seed it and how to reduce excess moisture).

Can I use frozen zucchini?

Fresh zucchini is best for texture, but if you only have frozen, thaw it completely and squeeze out extra moisture with paper towels before adding to the batter.

Can I make muffins with this batter?

Absolutely! It works perfectly for muffins or mini loaves—just shorten the baking time to 15-18 minutes for muffins or 25-30 minutes for mini loaves.

Close-up of a fudgy chocolate brownie with melty chocolate chunks and pistachio pieces.

Print

A moist, rich quick bread made with chocolate cake mix, shredded zucchini, eggs, and chocolate chips. An easy way to incorporate veggies into a delicious chocolate treat.

  • Author: Maya Reynolds
  • Prep Time: 10 minutes
  • Cook Time: 40-45 minutes
  • Total Time: 55 minutes
  • Yield: About 16 thick slices 1x
  • Category: Quick Bread

Ingredients

Scale
  • 1 box chocolate cake mix (13.25 ounces)
  • 1 ½2 cups zucchini, finely shredded
  • 3 large eggs
  • 1 cup mini chocolate chips

Instructions

  1. Preheat oven to 350°F; spray two loaf pans with non-stick spray and line the bottoms with parchment or wax paper.
  2. Wash zucchini and finely shred it.
  3. Whisk the eggs in a small bowl.
  4. Toss the mini chocolate chips with 1 tablespoon of the dry cake mix in a small bowl to coat.
  5. In a large bowl, combine the remaining chocolate cake mix, shredded zucchini, and whisked eggs.
  6. Mix with a spoon or spatula until just combined, allowing the batter to loosen as the zucchini releases moisture.
  7. Fold in the coated chocolate chips until evenly distributed.
  8. Divide the batter evenly between the prepared loaf pans and smooth the tops; sprinkle extra chocolate chips on top if desired.
  9. Bake for 40–45 minutes, or until a toothpick inserted in the center comes out mostly clean.
  10. Let the loaves cool in the pans for about 10 minutes.
  11. Run a knife along the edges and transfer the loaves to a wire rack to cool completely.

Notes

To prevent chocolate chips from sinking, coat them with dry cake mix before folding into the batter., Grate zucchini finely for better texture and moisture distribution., Do not overmix the batter once zucchini is added to keep the bread tender., Optional: Add 1 teaspoon instant espresso powder for enhanced chocolate flavor., The batter can also be baked as muffins (15–18 minutes) or mini loaves (25–30 minutes) for convenient, portable treats., You can substitute chocolate chips with white chocolate chips, peanut butter chips, or chocolate chunks, and add nuts such as walnuts or pecans., Store bread in an airtight container at room temperature for 3–4 days., Freeze wrapped loaves up to 3 months; thaw at room temperature before serving.

Nutrition

  • Serving Size: 1 slice
  • Calories: Not specified
  • Fat: Not specified
  • Carbohydrates: Not specified
  • Protein: Not specified

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Maya Reynolds

ABOUT THE AUTHOR

Maya Reynolds

Hi, I’m Maya Reynolds, a home cook, recipe creator, and mom of two living just outside Nashville, Tennessee. I’m 38, married to my husband Adam, and together we’re raising our two kids, Ella and Jack — my favorite little taste testers and the inspiration behind the simple, comforting, family-friendly recipes I share on CookeryGood.

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