Vegan Zucchini Brownies Recipe tastes ultra fudgy, deeply chocolatey, and secretly packs in a load of veggies that no one detects. It works perfectly for busy families, chocolate lovers, and anyone who wants a plant-based dessert in under an hour from start to finish. I tested this version on my skeptical Midwestern relatives, and they asked for seconds before I told them about the zucchini.
Why You Should Try This Vegan Zucchini Brownies Recipe
This Vegan Zucchini Brownies Recipe gives you rich, bakery-style brownies with crisp edges and a gooey center. The shredded zucchini keeps everything moist without eggs or dairy, so the brownies stay soft for days.
You sneak in vegetables without sacrificing flavor, which helps when you bake for picky kids or veggie-averse adults. You also mix everything in one bowl, so cleanup stays easy on a weeknight.
“These vegan zucchini brownies taste like classic fudgy brownies, and nobody guessed they contained vegetables until I told them. ★★★★★”
Ingredients You’ll Need
Dry ingredients
- 1 ¼ cups all-purpose flour
- Use a standard unbleached flour.
- Choose a gluten-free 1:1 baking blend if you need a gluten-free version.
- ¾ cup unsweetened cocoa powder
- Use natural cocoa for a classic flavor or Dutch-process for a deeper chocolate taste.
- 1 cup granulated sugar
- Organic cane sugar usually counts as vegan; check the label if that matters to you.
- ½ cup packed light brown sugar
- This adds moisture and a hint of caramel flavor.
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon fine sea salt
- ½ teaspoon instant espresso powder (optional, but it boosts chocolate flavor)
Wet ingredients
- 2 cups finely shredded zucchini, lightly packed
- Do not peel the zucchini; the green flecks bake into the brownies and stay subtle.
- Pat very lightly with a towel if it seems extremely watery, but keep most moisture.
- ½ cup neutral oil
- Use avocado oil, grapeseed oil, or light olive oil.
- ¼ cup unsweetened non-dairy milk
- Oat milk or soy milk give the best richness.
- 2 teaspoons vanilla extract
- 2 tablespoons ground flaxseed
- This acts as an egg replacer and adds a bit of fiber.
- 3 tablespoons warm water
- You mix this with the flaxseed to form a flax “egg.”
Mix-ins
- ¾ cup dairy-free chocolate chips or chunks
- I like Enjoy Life or Trader Joe’s vegan chips.
- ½ cup chopped walnuts or pecans (optional)
- Toast the nuts in a dry skillet for extra flavor.
Equipment list
- 8 x 8 inch metal baking pan
- Metal gives better edges than glass.
- Parchment paper
- Two medium mixing bowls
- Whisk and rubber spatula
- Box grater or food processor with shredding disc
- Measuring cups and spoons
- Cooling rack
- Sharp knife for slicing
Tips & Tricks
- Squeeze only if necessary: Keep most zucchini moisture so the batter stays thick and fudgy, not dry.
- Shred finely: Use the small holes on your grater so the zucchini melts into the batter and stays invisible.
- Mix gently: Stir the dry ingredients into the wet just until no dry streaks remain to keep the brownies tender.
- Line the pan: Use parchment with a slight overhang so you lift the brownies out easily and slice cleanly.
- Check early: Start checking at 25 minutes; slightly underbaked brownies taste richer than overbaked ones.
- Cool completely: Let the brownies cool before slicing so they set and cut into neat squares.
- Boost chocolate: Add the espresso powder if you want deeper chocolate flavor without coffee taste.
- Adjust sweetness: Use a little less sugar if you prefer a darker, less sweet brownie.
- Rest the batter: Let the mixed batter sit 5 minutes so the zucchini releases moisture and the flour hydrates.
- Clean slices: Wipe the knife between cuts or use a plastic knife to prevent tearing.
How to Make Vegan Zucchini Brownies Recipe
Step 1: Prep the pan and oven
Preheat your oven to 350°F (175°C). Line the 8 x 8 inch pan with parchment paper, leaving flaps on two sides so you lift the brownies out later. Lightly grease the exposed sides of the pan to prevent sticking.
Step 2: Shred the zucchini
Wash and dry the zucchini. Grate it on the small holes of a box grater or use a food processor shredding disc. Fluff the shreds with your fingers and check for excess water; if they drip heavily, pat them gently with a clean towel but keep them slightly wet.
Step 3: Make the flax “egg”
In a small bowl, stir together the ground flaxseed and warm water. Let the mixture sit 5 minutes until it thickens into a gel-like texture. This mixture helps bind the brownies and adds a bit of chew.
Step 4: Combine the wet ingredients
In a medium mixing bowl, whisk together the oil, non-dairy milk, vanilla, granulated sugar, and brown sugar until the mixture looks smooth and glossy. Stir in the flax mixture until it blends completely. Fold in the shredded zucchini so it distributes evenly through the wet base.
Step 5: Mix the dry ingredients
In another bowl, whisk the flour, cocoa powder, baking powder, baking soda, salt, and espresso powder. Break up any cocoa lumps with the whisk so the mixture looks uniform. This step keeps the brownies from having dry pockets of cocoa.
Step 6: Bring the batter together
Pour the dry mixture into the wet mixture. Use a spatula to fold gently until no dry flour streaks remain; the batter will look thick and fudgy. Fold in the chocolate chips and nuts, if you use them, so they spread throughout the batter.
Step 7: Fill the pan and level
Scrape the batter into the prepared pan. Spread it into the corners and smooth the top with your spatula. Sprinkle a few extra chocolate chips on top if you want a bakery-style look.
Step 8: Bake
Place the pan on the middle rack of the oven. Bake 25 to 32 minutes, depending on your oven and how fudgy you like your brownies. A toothpick inserted near the center should come out mostly clean with a few moist crumbs, not wet batter.
Step 9: Cool and slice
Set the pan on a cooling rack and let the brownies cool completely, at least 1 hour. Lift the brownies out using the parchment flaps and transfer them to a cutting board. Slice into 9 large squares or 16 smaller ones, wiping the knife between cuts for sharp edges.
What to Serve with Vegan Zucchini Brownies Recipe
Serve this Vegan Zucchini Brownies Recipe slightly warm with a scoop of dairy-free vanilla ice cream or coconut milk ice cream. Add fresh berries on the side for a bright, juicy contrast to the rich chocolate. A cold glass of oat milk or almond milk pairs perfectly and keeps everything plant-based. For a brunch spread, set the brownies next to fresh fruit salad and a big pot of hot coffee or herbal tea.
Storage Options
- Room temperature: Store sliced brownies in an airtight container at room temperature for up to 3 days; place parchment between layers to prevent sticking.
- Refrigeration: Keep brownies in a sealed container in the fridge for 5 to 6 days; let them sit at room temperature 15 minutes before serving for the best texture.
- Freezer: Wrap individual brownies in plastic or parchment, place them in a freezer bag, and freeze for up to 2 months; label the bag with the date.
- Reheating: Warm a brownie in the microwave for 10 to 15 seconds or in a 300°F oven for 5 to 7 minutes until just soft and melty.
Vegan Zucchini Brownies Recipe
Ingredients
Instructions
- Preheat the oven to 350°F (175°C). Line an 8 x 8 inch metal baking pan with parchment paper, leaving an overhang on two sides to lift the brownies out later. Lightly grease any exposed sides of the pan.
- Wash and dry the zucchini. Finely shred it using the small holes of a box grater or a food processor shredding disc. Fluff the shreds and, if they seem extremely watery and drip heavily, gently pat them with a clean towel while keeping most of the moisture.
- In a small bowl, stir together the ground flaxseed and warm water. Let the mixture sit for about 5 minutes until it thickens into a gel-like flax "egg."
- In a medium mixing bowl, whisk together the neutral oil, non-dairy milk, vanilla extract, granulated sugar, and light brown sugar until smooth and glossy. Stir in the thickened flax mixture until fully combined, then fold in the shredded zucchini until evenly distributed.
- In a separate bowl, whisk the flour, cocoa powder, baking powder, baking soda, fine sea salt, and instant espresso powder (if using) until well combined and any cocoa lumps are broken up.
- Pour the dry ingredients into the wet ingredients. Using a rubber spatula, fold gently just until no dry flour streaks remain; the batter will be thick and fudgy. Fold in the dairy-free chocolate chips and the chopped nuts, if using, until evenly mixed.
- Scrape the batter into the prepared baking pan. Spread it into the corners and smooth the top with the spatula. If desired, sprinkle a few extra chocolate chips over the surface for a bakery-style look.
- Place the pan on the middle rack of the oven and bake for 25 to 32 minutes, depending on how fudgy you like your brownies. A toothpick inserted near the center should come out mostly clean with a few moist crumbs clinging to it, not wet batter.
- Set the pan on a cooling rack and let the brownies cool completely, at least 1 hour. Use the parchment overhang to lift the cooled brownies out of the pan and onto a cutting board. Slice into 9 large squares or 16 smaller ones, wiping the knife between cuts for the cleanest edges.
Notes
Approximate per serving (1 of 16): 210 calories; fat 10 g; saturated fat 3 g; carbohydrates 30 g; fiber 3 g; sugars 21 g; protein 3 g; sodium 160 mg. Values are estimates and will vary based on brands, exact measurements, and portion size. Storage: Store brownies in an airtight container at room temperature for up to 3 days, refrigerate for 5–6 days, or freeze for up to 2 months. Reheat briefly in the microwave or a low oven until just warm and soft.
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