Fudgy Chocolate Zucchini Brownies
Chocolate lovers, this recipe is for you. These brownies are soft, fudgy, and loaded with rich chocolate flavor from the first bite to the last. Fresh zucchini makes them extra moist, but you’ll never know it’s there.
They’re perfect for sharing or keeping all to yourself.
Why You’ll Love This Recipe
- Rich, fudgy texture
- Moist and soft in every bite
- A delicious way to use fresh zucchini
- Easy one-bowl recipe
- Kid-friendly dessert
- Perfect for summer baking
- Freezer-friendly
- No one can taste the zucchini!
Ingredients
Dry Ingredients
- 1½ cups all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ½ teaspoon salt
- 1 teaspoon espresso powder (optional, enhances chocolate flavor)
Wet Ingredients
- ½ cup unsalted butter, melted
- ½ cup vegetable oil
- 1 cup granulated sugar
- ½ cup light brown sugar, packed
- 2 large eggs
- 2 teaspoons vanilla extract
Mix-Ins
- 2 cups finely grated zucchini (lightly squeezed)
- 1 cup semi-sweet chocolate chips
- ½ cup chopped walnuts or pecans (optional)
How to Prepare Zucchini Brownies
Step 1: Prepare the Oven and Pan
Preheat your oven to 350°F (175°C).
Line an 8×8-inch baking pan with parchment paper, leaving an overhang on the sides for easy removal. Lightly grease the paper with nonstick cooking spray or butter.
Wash the zucchini, trim the ends, and grate it finely. Lightly squeeze out excess moisture using paper towels, but don’t remove all the liquid—the remaining moisture helps keep the brownies soft and fudgy.
Step 2: Mix the Dry Ingredients
In a medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder (if using).
Mix until the dry ingredients are evenly combined and there are no lumps of cocoa powder.
Step 3: Prepare the Batter
In a large mixing bowl, whisk together the melted butter, vegetable oil, granulated sugar, brown sugar, eggs, and vanilla extract until smooth.
Gradually add the dry ingredients and gently mix until just combined.
Fold in the grated zucchini, chocolate chips, and chopped nuts (if using). The batter will be thick and rich.
Step 4: Bake
Spread the batter evenly into the prepared baking pan using a spatula.
Bake for 30–35 minutes, or until a toothpick inserted near the center comes out with a few moist crumbs. Avoid overbaking to keep the brownies fudgy.
Step 5: Cool
Remove the brownies from the oven and let them cool in the pan for 20 minutes.
Lift them out using the parchment paper and transfer them to a wire rack to cool completely before slicing.
Step 6: Slice and Serve
Cut into 16 squares using a sharp knife.
Serve as is, or dust with powdered sugar. For an extra indulgent dessert, top with vanilla ice cream, whipped cream, or a drizzle of chocolate ganache.
Expert Tips
- Finely grate the zucchini so it blends seamlessly into the batter.
- Don’t over-squeeze the zucchini; a little moisture keeps the brownies soft.
- Use high-quality cocoa powder for the richest flavor.
- Avoid overmixing the batter to keep the brownies tender.
- Let the brownies cool completely before slicing for clean edges.
- Add extra chocolate chips on top before baking for a bakery-style look.
Variations
- Add white chocolate chips.
- Mix in chopped pecans or walnuts.
- Sprinkle flaky sea salt on top.
- Frost with chocolate buttercream or cream cheese frosting.
- Make gluten-free using a 1:1 gluten-free flour blend.
Storage
Store the brownies in an airtight container at room temperature for up to 3 days, or refrigerate for up to 1 week.
Freezing
Freeze individual brownie squares for up to 3 months. Thaw at room temperature before serving.
What to Serve with Zucchini Brownies
- Vanilla ice cream
- Fresh berries
- Whipped cream
- Chocolate sauce
- Hot coffee
- Cold milk
- Caramel drizzle
- Chocolate milkshake
Frequently Asked Questions
Can you taste the zucchini?
No. The zucchini melts into the brownies as they bake, adding moisture without a noticeable vegetable flavor.
Should I peel the zucchini?
No. The peel is thin, nutritious, and virtually disappears during baking.
Can I freeze zucchini brownies?
Yes! Wrap individual brownies tightly and freeze for up to 3 months.
Why are my brownies dry?
Overbaking or removing too much moisture from the zucchini can make the brownies dry. Bake just until a toothpick comes out with a few moist crumbs.
Fudgy Chocolate Zucchini Brownies
Ingredients
- Dry Ingredients
- 1½ cups all-purpose flour
- ½ cup unsweetened cocoa powder
- 1 teaspoon baking soda
- ½ teaspoon baking powder
- ½ teaspoon salt
- 1 teaspoon espresso powder optional
- Wet Ingredients
- ½ cup unsalted butter melted
- ½ cup vegetable oil
- 1 cup granulated sugar
- ½ cup packed light brown sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- Mix-Ins
- 2 cups finely grated zucchini lightly squeezed
- 1 cup semi-sweet chocolate chips
- ½ cup chopped walnuts or pecans optional
Instructions
- Preheat the oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper and lightly grease it. Finely grate the zucchini and gently squeeze out excess moisture.
- In a medium bowl, whisk together the flour, cocoa powder, baking soda, baking powder, salt, and espresso powder.
- In a large bowl, whisk together the melted butter, vegetable oil, granulated sugar, brown sugar, eggs, and vanilla. Fold in the dry ingredients until just combined, then stir in the grated zucchini, chocolate chips, and chopped nuts, if using.
- Spread the batter evenly into the prepared baking pan and sprinkle extra chocolate chips on top if desired. Bake for 30–35 minutes, or until a toothpick inserted near the center comes out with a few moist crumbs.
- Let the brownies cool in the pan for 20 minutes, then transfer them to a wire rack to cool completely.
- Slice into 16 squares and serve plain, dusted with powdered sugar, or topped with vanilla ice cream.
Notes
- Finely grate the zucchini so it blends smoothly into the batter.
- Do not squeeze all the moisture from the zucchini; a little moisture keeps the brownies extra fudgy.
- Avoid overmixing the batter to maintain a soft texture.
- For clean slices, allow the brownies to cool completely before cutting.
- Add extra chocolate chips on top before baking for a bakery-style finish.
- Store leftovers in an airtight container for up to 3 days at room temperature or 1 week in the refrigerator.
- Rich, fudgy homemade zucchini brownies with deep chocolate flavor.
- A delicious way to use fresh garden zucchini without sacrificing taste.
- Perfect for dessert, bake sales, lunchboxes, or afternoon snacks.
- Freezer-friendly and easy to make ahead for busy weeks.
- Serve with vanilla ice cream, whipped cream, or a drizzle of chocolate sauce.
- A family-favorite chocolate dessert that’s moist, chewy, and packed with chocolate chips.
Nutrition (Per Serving)
- Calories: 245 kcal
- Carbohydrates: 32g
- Protein: 4g
- Fat: 12g
- Saturated Fat: 5g
- Cholesterol: 35mg
- Sodium: 180mg
- Potassium: 210mg
- Fiber: 2g
- Sugar: 22g
- Vitamin A: 4% DV
- Vitamin C: 5% DV
- Calcium: 3% DV
- Iron: 8% DV
