Every summer, my garden overflows with zucchini and yellow squash, and this Chocolate Zucchini Bread has become my favorite way to transform those humble veggies into a decadent treat! This loaf is rich, fudgy, and studded with chocolate chips, with a tender crumb thanks to the natural moisture of zucchini or yellow squash—no squeezing required. A touch of espresso powder (optional) amps up the chocolate flavor, and a clever trick of adding chocolate chips late in the bake ensures a bakery-worthy presentation. Whether you’re harvesting from your garden or just craving chocolate, this easy recipe delivers a stunning domed loaf perfect for breakfast, snacks, or dessert. Let’s dive in!

Why You’ll Love This Chocolate Zucchini Bread

Incredibly Moist: Zucchini’s natural moisture (no squeezing needed!) plus Greek yogurt creates a soft, fudgy texture.
Double Chocolate Bliss: Cocoa powder and chocolate chips deliver decadence, with espresso powder for an optional flavor boost.
Sneaky Veggies: Zucchini adds nutrition without a hint of veggie taste.
Stunning Presentation: Chocolate chips added near the end of baking stay perfectly perched on top.
Quick and Easy: About an hour from start to finish with pantry staples.

Tips for Success

Zucchini or Yellow Squash: Both work beautifully in this recipe, adding moisture and nutrition. Keeping the natural moisture (no squeezing!) simplifies prep.
Sifting for Smoothness: Cocoa powder can be lumpy, so sifting it with the baking soda, baking powder, salt, cinnamon, and espresso powder through a fine-mesh sieve ensures a lump-free, velvety batter.
Espresso Powder: The optional 1 tsp espresso powder deepens the chocolate flavor without overpowering. It’s a small addition with big impact!
Late Chip Trick: Adding chocolate chips in the last 10 minutes ensures they stay on top for a stunning presentation—no flour dusting needed.

More Ways to Use Your Zucchini or Yellow Squash

Got a bumper crop of zucchini or yellow squash from your garden? This chocolate zucchini bread is just the start! Check out my other delicious recipes to make the most of your harvest:

Lemon Zucchini Bread: A bright, zesty loaf with a tangy glaze—perfect for summer.
Zucchini Sausage Casserole: A hearty, savory dish that’s a meal in itself.
Zucchini Pickles: Crunchy, tangy pickles to preserve your garden’s bounty.

Serving and Storage

Serving: Slice and enjoy warm for melty chocolate goodness or at room temperature for a fudgy treat. Pair with coffee, a spread of butter, or a scoop of ice cream for a decadent dessert.
Storage: Store in an airtight container at room temperature for up to 3 days or refrigerate for up to 1 week. To freeze, wrap tightly in plastic wrap and a freezer-safe bag for up to 3 months. Thaw at room temperature.

Why This Recipe Works

This chocolate zucchini bread is a winner thanks to its perfect balance of rich flavor and moist texture. Keeping the zucchini’s moisture simplifies the process while ensuring a tender crumb. The cocoa and chocolate chips deliver double-chocolate decadence, with espresso powder adding optional depth. The late-added chocolate chips guarantee a picture-perfect finish. It’s an easy, versatile recipe that’s great for gifting, snacking, or impressing guests. If you’d rather not mess with the chocolate chip topping, it is just a delicious without them as well.

chocolate zucchini bread without optional chocolate chips on top

Try It and Share!

This chocolate zucchini bread is a must-bake for any chocolate lover, and the no-squeeze zucchini method makes it even easier. Have you tried it? Got a fun twist, like adding walnuts or a different chip variety? Drop a comment below—I’d love to see your beautiful loaves!

Happy baking, and enjoy every moist, chocolatey bite!

Prep Time:15

Cook Time:1

Total Time:1 15

Servings: slices

Author: Julie Gavin

equipment (affiliate links

Ingredients

1 ½ c. (180 g) shredded zucchini or yellow squash
1 ½ c. (190 g) unbleached all-purpose flour (RECOMMEND WEIGHING)
½ c. (45 g) dutch-processed cocoa powder sifted
1 ¼ tsp. baking soda
¾ tsp. baking powder
½ tsp. salt
1 tsp. ground cinnamon
1 tsp. espresso powder optional for richer chocolate flavor
2 large eggs
¾ c. (150 g) granulated sugar
½ c. (100 g) brown sugar packed
½ c. (113 g) salted butter melted
¼ c. (50 g) plain Greek yogurt or sour cream
1 tsp. vanilla extract
1 c. (175 g) semi-sweet chocolate chips for batter
1 tsp. unbleached all-purpose flour for coating chocolate chips
¼ c. (44 g) semi-sweet chocolate chips optional for topping

Instructions

Preheat and Prep Pan: Preheat oven to 350°F (175°C). Grease a 9×5-inch loaf pan or line with parchment paper.
Prep the Zucchini or Squash: Grate 1 medium zucchini or yellow squash to yield 1 ½ cups shredded. Do not squeeze out moisture (unless using yellow squash) to keep the bread moist. Set aside.
1 ½ c. (180 g) shredded zucchini
Mix the Dry Ingredients: In a large bowl, add the flour and sift cocoa powder, baking soda, baking powder, salt, cinnamon, and espresso powder (if using) through a fine-mesh sieve remove lumps, ensuring a smooth batter.
1 ½ c. (190 g) unbleached all-purpose flour (RECOMMEND WEIGHING)
½ c. (45 g) dutch-processed cocoa powder
1 ¼ tsp. baking soda
¾ tsp. baking powder
½ tsp. salt
1 tsp. ground cinnamon
1 tsp. espresso powder
Mix the Wet Ingredients: In another bowl, whisk eggs, granulated sugar, brown sugar, butter, Greek yogurt, and vanilla extract until smooth.
2 large eggs
¾ c. (150 g) granulated sugar
½ c. (100 g) brown sugar
½ c. (113 g) salted butter
¼ c. (50 g) plain Greek yogurt
1 tsp. vanilla extract
Combine the Wet and Dry Ingredients: Add wet ingredients to dry, stirring with a spatula until just combined. Avoid overmixing.
Fold in Zucchini and Chips: Fold in shredded zucchini (or yellow squash) and 1 cup chocolate chips until evenly distributed.
1 c. (175 g) semi-sweet chocolate chips
Bake: Pour batter into the prepared pan, smoothing the top and mounding slightly in the center for a domed loaf. Bake for 45–55 minutes. In the last 10 minutes, remove the loaf, sprinkle 2–3 tbsp chocolate chips on top, and lightly press them in. Return to oven to finish baking. Check doneness with a toothpick (clean or with a few moist crumbs). Total baking time is 55–65 minutes.
¼ c. (44 g) semi-sweet chocolate chips
1 tsp. unbleached all-purpose flour
Cool: Cool in the pan for 10–15 minutes, then transfer to a wire rack to cool completely before slicing.

Notes

Zucchini or Yellow Squash: Both work perfectly, adding moisture and nutrition. No need to squeeze out liquid, but if the batter looks too wet (like thin pancake batter), add 1–2 tbsp extra flour.
Sifting Cocoa and Spices: Cocoa powder can be lumpy, so sifting it with baking soda, baking powder, salt, cinnamon, and espresso powder through a fine-mesh sieve ensures a smooth, lump-free batter.
Espresso Powder: Enhances chocolate flavor without a coffee taste—highly recommended!
Chocolate Chip Topping: Adding chips in the last 10 minutes prevents sinking for a bakery-style look.

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