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Home > Desserts > Best Moist And Fudgy Zucchini Brownies
45 minutes minutes

Best Moist And Fudgy Zucchini Brownies

Modified: Sep 12, 2025 · Published: May 23, 2024

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moist zucchini brownies stacked on top of each other with text overlay.

Zucchini brownies are rich, moist, fudgy, and insanely delicious! You won’t even realize there are veggies in these brownies! A perfect way to use zucchini lying in your fridge and a perfect dessert for any chocoholic!

Using minimal ingredients, you can make delicious desserts! Like these 3 ingredients brownies and moist lemon brownies.

Try these low-carb zucchini fritters for a quick and healthy snack.

moist brownies made from zucchini stacked one on top of other.
Jump to:
  • Why does this recipe work?
  • Ingredients
  • Step-by-step instructions
  • Tips
  • Storage
  • Other Zucchini Recipes
  • 📋Best Moist And Fudgy Zucchini Brownies

Why does this recipe work?

  1. It’s easy to make kids eat vegetables by hiding them in a dessert. Want to make kids eat more veggies? try zucchini pizza bites, they’ll love it!
  2. Healthy treat for all chocoholics!
  3. Make rich, moist, fudgy, outrageously delicious fudgy brownies!
  4. These brownies are healthy-ish! You are eating …a vegetable!
  5. Perfect make-ahead dessert. It tastes even better the next day, so make a big batch and store it.
  6. It stays moist for days!

Have you tried crispy potato rosti? These are tasty snacks for kids and adults.

Ingredients

all ingredients for zucchini brownies placed on white board
  1. Zucchini – small-size zucchini are best, as they have much more moisture in them which is needed for making the batter. Large-size zucchini are mostly dryer! There is no water/milk/egg used to make the batter. Moisture from zucchini is crucial to make moist and fudgy brownies. Do not drain the liquid!
  2. Oil – use flavorless oil like vegetable oil, canola oil, or sunflower oil.
  3. Cocoa powder – Unsweetened Dutch-processed cocoa powder is best.  It has a strong chocolate flavor. Regular cocoa powder can be used too.
  4. Flour – use all-purpose plain flour. For gluten-free options use coconut flour or gluten-free oats flour.
  5. Sugar – Use granular white sugar for best results. Other granulated sweeteners that you can use- are coconut sugar and erythritol. Granulated sweeteners help in the texture of the brownies.
  6. Baking soda – also called bi-carbonate soda. It’s used to help the brownies rise. If you want to substitute with baking powder use 4 ½ tablespoons.
  7. Vanilla extract – use good quality vanilla for better taste.
  8. Salt – a pinch of sea salt enhances the taste.
ingredients for brownie frosting

You can use hot fudge sauce as a glaze for brownies too.

Step-by-step instructions

Preheat oven to 350 degrees Fahrenheit (or 150 degrees centigrade). Grease a 9×13 baking pan with butter. Line it with parchment paper.

grating zucchini for brownie.

Step 1: Pick small zucchini as they have more moisture. More moisture = moistest brownies! Use the small side of the grater and grate zucchini.

Step 2: Do not drain. Keep it aside until use.

picture collage of making brownie batter.

Step 3: In a large bowl add all the dry ingredients – all-purpose flour, cocoa powder, baking soda, and salt.

Step 4: Mix until well combined. Keep aside.

picture collage of making brownie batter.

Step 5: In another large bowl, add granulated sugar, oil, and vanilla extract.

Step 6: Beat until sugar gets dissolved and ingredients get combined.

picture collage of making brownie batter.

Step 7: Add dry ingredients little at a time to the wet ingredients and beat until combined. Add the second part, and beat until combined. Add the final part and beat again. Do not overbeat.

Step 8: Note at this point the mix will be dry and powdery, don’t worry. It will come together after zucchini is added. Do not add water or milk at this stage.

grated zucchini added to brownie batter in a bowl.

Step 9: Add grated zucchini(with the liquid).

Step 10: Fold gently until the batter comes together. Allow the batter to rest for 5 minutes. The moisture in the zucchini will loosen the brownie batter and bring it to the right consistency. If the batter is not wet enough, let it rest for 5 more minutes. For extra chocolatey taste add choco chips or choco chunks to the batter.

chocolate brownies made using zucchini in a baking dish.

Step 11: Pour brownie batter into the baking pan. Spread it evenly. Shake the pan a few times to release any bubbles from the bottom of the pan. Bake in a preheated oven at 350 degrees Fahrenheit for 25 to 35 minutes.

Step 12: Brownies are done when a toothpick inserted in the center of the pan comes out clean. Remove the pan from the oven and allow it to cool completely.

making chocolate glaze for brownies.

Step 13: Meanwhile make the frosting. In a bowl whisk together powdered sugar, cocoa powder, melted butter, vanilla extract, and a little water as needed.

Step 14: Mix well.

picture collage of baked zucchini brownies in a baking tray.

Step 15: Spread frosting evenly over cooled brownies, and allow them to set completely in the fridge for a couple of hours.

Step 16: Once set, remove the brownies from the baking pan. Using a sharp knife cut into bars and serve.

Brownies will harden once cooled and taste even better the day after! Keep the leftovers covered in air-tight containers in the fridge. You can also freeze them.

Tips

  1. Use small zucchini. It has more moisture than larger zucchini.
  2. Use the small side of the grater to grate zucchini, so it gets hidden and kids won’t be able to see it.
  3. Do not drain grated zucchini.
  4. Measure 3 cups of grated zucchini. Don’t press it tight while measuring.
  5. Use Dutch-processed cocoa powder for a stronger chocolatey taste.
  6. For a rich chocolate taste add choco chunks (or choco chips) to the batter.
  7. Don’t overbake.
  8. Brownies will harden and set as it cool down.
  9. Brownies taste even better the next day.
  10. You can skip glaze or reduce the amount. Alternatively, top the brownies with choco chunks or chips as soon as they come out of the oven, they’ll melt when it’s still hot.

Storage

Fridge – Any leftovers can be covered in air-tight containers and stored in the refrigerator for up to a week. They taste better the second day and keep moist for days.

Freezer – Stack up the bars in air-tight containers separating the bars with parchment wax paper covered in air-tight containers. You can keep these frozen for 2 months.

When ready to eat, thaw these in the fridge and then bring them to room temperature before eating.

squares of moist fudgy zucchini brownies on a cutting board.

Other Zucchini Recipes

  • healthy zucchini stir fry made in skillet

    20 Minutes Zucchini Stir Fry

  • serving baked zucchini chips with creamy sauce

    Baked Zucchini Chips

  • zucchini boats

    Buffalo Chicken Stuffed Zucchini Boats

  • zucchini bite-size pizza on a plate.

    Low-Carb Zucchini Pizza Bites

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moist brownies made from zucchini stacked one on top of other.
4.91 from 11 votes

📋Best Moist And Fudgy Zucchini Brownies

Jyothi Rajesh
Zucchini brownies are rich, moist, fudgy, and insanely delicious! You won’t even realize there are veggies in these brownies! A perfect way to use zucchini.
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Prep Time 10 minutes mins
Cook Time 35 minutes mins
Total Time 45 minutes mins
Course Dessert
Cuisine American
Servings 15 brownies
Calories 275

Ingredients
  

  • 3 cups grated zucchini DO NOT DRAIN, lightly packed
  • 2 cups all-purpose flour see notes for gluten-free options
  • 1 ½ cups granular sugar see notes
  • 1 ½ teaspoons baking soda
  • 1 teaspoon pure vanilla extract
  • ½ cup vegetable oil
  • ½ cup Dutch processed cocoa powder or use regular cocoa powder
  • ½ teaspoon salt

For Frosting – (optional)

  • 1 cup powdered sugar
  • 3 tablespoons Dutch-processed cocoa powder or ordinary cocoa powder
  • 4 tablespoons melted butter
  • 1 teaspoon vanilla extract
  • 2 tablespoons water or as needed

Instructions
 

  • Preheat oven to 350 degrees Fahrenheit (or 150 degrees centigrade). Grease a 9×13 baking pan with butter. Line it with parchment paper.
  • Pick small zucchini as they have more moisture. More moisture = moistest brownies! Use the small side of the grater and grate zucchini.
  • Do not drain. Keep it aside until use.
  • Mix until well combined. Keep aside
  • In another large bowl, add granulated sugar, oil, and vanilla extract.
  • Beat until sugar gets dissolved and ingredients get combined.
  • Add dry ingredients little at a time to the wet ingredients and beat until combined. Add the second part, and beat until combined. Add the final part and beat again. Do not overbeat.
  • Now add dry ingredients in parts. Add a little at a time to the wet ingredients and whisk until combined. Add the second part, and continue to whisk until combined. Add the final third part and whisk until everything comes together.
  • Note at this point the mix will be dry and powdery, don’t worry. It will come together after zucchini is added. Do not add water or milk at this stage.
  • Add grated zucchini(with the liquid).
  • Fold gently until the batter comes together. Allow the batter to rest for 5 minutes. The moisture in the zucchini will loosen the brownie batter and bring it to the right consistency. If the batter is not wet enough, let it rest for 5 more minutes. For extra chocolatey taste add choco chips or choco chunks to the batter.
  • Pour brownie batter into the baking pan. Spread it evenly. Shake the pan a few times to release any bubbles from the bottom of the pan. Bake in a preheated oven at 350 degrees Fahrenheit for 25 to 35 minutes.
  • Brownies are done when a toothpick inserted in the center of the pan comes out clean. Remove the pan from the oven and allow it to cool completely.
  • Meanwhile make the frosting. In a bowl whisk together powdered sugar, cocoa powder, melted butter, vanilla extract, and a little water as needed.
  • Mix well.
  • Spread frosting evenly over cooled brownies, and allow them to set completely in the fridge for a couple of hours.
  • Once set, remove the brownies from the baking pan. Using a sharp knife cut into bars and serve.
  • Brownies will harden once cooled and taste even better the day after! Keep the leftovers covered in air-tight containers in the fridge. You can also freeze them.
  • Keep the leftovers covered in air tight containers in fridge. You can also freeze them.

Video

Notes

    1. Use small zucchini. It has more moisture than larger zucchini.
    2. Use the small side of the grater to grate zucchini, so it gets hidden and kids won’t be able to see it.
    3. Do not drain grated zucchini.
    4. Measure 3 cups of grated zucchini. Don’t press it tight while measuring.
    5. Use Dutch-processed cocoa powder for a stronger chocolatey taste.
    6. For a rich chocolate taste add choco chunks (or choco chips) to the batter.
    7. Don’t overbake.
    8. Brownies will harden and set as they cool down.
    9. Brownies taste even better the next day.
    10. You can skip glaze or reduce the amount. Alternatively, top the brownies with choco chunks or chips as soon as they come out of the oven, they’ll melt when it’s hot.
Nutritional Info – Please remember that the nutritional information provided is only a rough estimate and can vary greatly based on the products used.
The nutrition mentioned is per bar/slice, medium-sized slice. I got 15 medium-sized slices/bar.

Nutrition

Calories: 275kcalCarbohydrates: 44gProtein: 3gFat: 11gSaturated Fat: 8gCholesterol: 8mgSodium: 185mgPotassium: 141mgFiber: 2gSugar: 29gVitamin A: 143IUVitamin C: 4mgCalcium: 12mgIron: 1mg
Did you make this recipe?Follow @CurryTrail and tag #CurryTrail to share your creation!

Created by Jyothi Rajesh

Thank you for stopping by.

I’m Jyothi Rajesh (Jo for short) and I’m the founder of the food blog, Curry Trail where I share my culinary Adventures. I live in Bangalore, India. I’m a mom of two beautiful kids. My passion is creating and sharing delicious and easy recipes for the home cook. I have been blogging since 2014 and many of my recipes have appeared in both online and print publications over the years. Learn more about Jyothi Rajesh.

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    Comments & Reviews

  1. M Jordan says

    October 01, 2023 at 8:23 pm

    I didn’t have enough zucchini so I added 2 small mashed ripe bananas. I cut back to 1 cup of sugar. Everything else the same. The result was a delicious not too sweet moist cake texture. I got lots of compliments on this version. Either way this recipe is a keeper.

    Reply
    • Jyothi Rajesh says

      October 03, 2023 at 4:15 pm

      I’m so glad you loved the recipe! Thank you

      Reply
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Jyothi - Author of Curry Trail.

Welcome, I'm Jyothi

My food philosophy is simple, fresh and full of flavors! I love ‘spicy’ food. In fact so much so that I can skip dessert for extra spicy savory food!

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