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Zucchini Brownies Recipe

Zucchini Brownies Recipe

A fast-to-fix peanut butter and chocolate frosting tops these moist brownies that are a sweet way to use up your green garden squash. We really like the cake-like texture of these zucchini brownies. —Allyson Wilkins, Amherst, New Hampshire
TOTAL TIME: Prep: 20 min. Bake: 35 min. + cooling YIELD:15-18 servings


  • 1 cup butter, softened
  • 1-1/2 cups sugar
  • 2 large eggs
  • 1/2 cup plain yogurt
  • 1 teaspoon vanilla extract
  • 2-1/2 cups all-purpose flour
  • 1/4 cup baking cocoa
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 2 cups shredded zucchini
  • 2/3 cup semisweet chocolate chips
  • 1/2 cup creamy peanut butter


  • 1. In a large bowl, cream butter and sugar until light and fluffy. Add eggs, one at a time, beating well after each addition. Beat in yogurt and vanilla. Combine the flour, cocoa, baking soda and salt; gradually add to creamed mixture. Stir in zucchini.
  • 2. Pour into a greased 13x9-in. baking pan. Bake at 350° for 35-40 minutes or until a toothpick inserted in the center comes out clean.
  • 3. For frosting, in a small saucepan, combine chocolate chips and peanut butter. Cook and stir over low heat until smooth. Spread over warm brownies. Cool on a wire rack. Cut into bars. Yield: about 1-1/2 dozen.

Nutritional Facts

1 piece: 307 calories, 17g fat (8g saturated fat), 52mg cholesterol, 283mg sodium, 37g carbohydrate (21g sugars, 2g fiber), 5g protein.

Reviews for Zucchini Brownies

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Roxanne User ID: 9095650 271901
Reviewed Aug. 17, 2017

"The cake/brownie is very dry. Icing is delicious. Definitely not a brownie. Recipe needs work. To dry"

Irinie User ID: 8906183 254541
Reviewed Sep. 24, 2016

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Loiscooks User ID: 3656565 253131
Reviewed Aug. 25, 2016

"Glad I made only one half recipe. We did not like this at all. I will not make this again."

s.keeper User ID: 7380142 252369
Reviewed Aug. 8, 2016

"Would definitely call this a cake. It turned out fine but the peanut butter frosting is just wrong for this! I love pb and chocolate (even ate it as I was scarping it off!) but it was wrong for this cake."

[email protected] User ID: 7564909 250652
Reviewed Jul. 20, 2016

"Turned out cake-like as others state, (I prefer Brownie texture). Frosting is delicious. It was difficult to spread thin enough to cover 13 x 9. Good if you enjoy cake, zucchini is not detected :), and frosting is yummy but should be doubled!"

shannondobos User ID: 5115022 235372
Reviewed Oct. 21, 2015

"I definitely agree with the other reviewers, this is much more of a cake consistency than a brownie. However, it is a fantastic cake. The frosting is what makes it different from the usual chocolate zucchini cake. It's simple, but very rich. Perfect mix of sweet and peanuty chocolate goodness!"

jackiegreen User ID: 1079189 231109
Reviewed Aug. 12, 2015

"I was expecting Brownies and I got cake. I found an after taste of 'soda'. In general it was OK but I have had better cake made with zucchini. I won't be making this again."

mkaskela User ID: 6061564 231086
Reviewed Aug. 11, 2015


debholdswortholivier User ID: 8009773 84930
Reviewed Sep. 25, 2014

"I've made these several times. More like a snack cake that a brownie, but delicious!"

1nana27 User ID: 6327342 84929
Reviewed Sep. 14, 2014

"Really great light chocolate taste. Used glaze instead of peanut butter and chocolate chips."

lurky27 User ID: 1251896 110908
Reviewed Apr. 16, 2012

"Good if you want a nice chocolate cake. You don't taste the zucchini at all. But not great if you're craving brownies.

~ Theresa"

Bethshiels User ID: 4930056 142338
Reviewed Oct. 14, 2011

"Sounds weird, but turned out very well. They were very moist and you couldn't even tell there was zucchini in it. The frosting was delicious!"

Guidopuppy User ID: 193187 59246
Reviewed Sep. 16, 2011

"This is very much more of a snack cake than a brownie. Be sure not to cook them too long as they will dry out (i.e., glass pan). Also, the frosting is a must to make and it completes the brownie."

MaMel User ID: 5947182 55375
Reviewed Sep. 5, 2011

"I agree with the other posters; this is not really a brownie - definitely more cake-like. Wonderful flavor, though!! I used a whipped chocolate ganache for the frosting, but next time I'll try the PB/chocolate mixture. Great way to use up the zucchini for a sweet treat!"

OhBarbi User ID: 5434643 59245
Reviewed Aug. 23, 2011

"This is zucchini cake, not brownies. It's kind of a light beige color, since there's only 1/4 cup of cocoa in it. I tried adding dark chocolate chips to help with the chocolate flavor. It tastes OK but it wasn't brownies like I wanted. I won't be making this one again."

AMUNDT01 User ID: 5205137 135795
Reviewed Aug. 17, 2011

"Definitely more of a cake than a brownie recipe. I added 1/2 cup choc. chips to batter and frosted with regular homemade choc. frosting. My family thought this cake was awesome. There was a fight for the last piece and my youngest asked me to make it again. I have made it twice so far. Very good."

asfisher User ID: 5663178 63228
Reviewed Aug. 12, 2011

"Awful! Not enough chocolate flavor and more like a cake instead of a brownie. I took them to work and even the guy I call Tony Two Stomachs didn't take seconds. Not much flavor at all. Ugh!"

catgwood User ID: 5317014 206255
Reviewed Aug. 10, 2011

"This was so yummy even without frosting. I will make it again. No one knows it has zucchini in it. I leave the peelings on for fiber!"

blazendeb User ID: 6145672 70320
Reviewed Aug. 10, 2011

"I would change nothing on this recipe! The brownies were moist and dense, so they didn't fall apart. The frosting was a breeze to make and was an awesome topping. Just an fyi, I wash the zucchini and do not peel them before shredding. I think that makes a difference in the consistency. Normally I am not a commenter on recipes but this one really wowed my husband and me."

surban2011 User ID: 6141857 142336
Reviewed Aug. 8, 2011

"I would make again but I would modify the recipe. Not enough chocolate flavor, I would add more chocolate or maybe some chocolate chips. cake like brownies, not dense at all. I used chocolate frosting instead of the peanut butter/chocolate frosting."

asabot User ID: 620927 55154
Reviewed Aug. 8, 2011

"Absolutely delicious! Definitely a "cake" recipe, not brownies, but so moist and flavorful. Will definitely make again any time my zucchini get out of hand."

BrookesPearl User ID: 5889961 141319
Reviewed Jul. 31, 2011

"It was good but more cakey. I like my brownies a bit more dense and it was too much like a chocolate cake. Good but needs some modifications."

hcandico User ID: 4360102 59286
Reviewed Sep. 2, 2010

"OMG!!!!! These are to die for!! What an awesome way to use up zucchini. Rich and super moist with that hint of peanut butter. Will definitely be making again and again."

Mom4food User ID: 4949319 59244
Reviewed Sep. 1, 2010

"These are sooo good. Not quite brownie like, more like fudge cake. No matter what the name is these are fantastic. Next time, I'll double the frosting....yummy!!"

Michelle J. Zimmerman User ID: 1351552 105639
Reviewed Aug. 22, 2010

"What a great way to use that abundance of zucchini that from our gardens. I made these for the first time for a gathering of mountain bikers. They were a big hit! Even my chocolate-loathing husband ate these!"

rmedina4 User ID: 3459537 117782
Reviewed Aug. 20, 2010

"I really want to try this recipe BUT I never used zucchini before. Do I just grate it and use it as is or do I squeeze it dry w/a towel? Zucchini people don"t think that everyone out in TOH land is familiar w/all types of veggies. Also, like chocolate about how much more should I add? Desperately seeking HELPPPPPPPPPP! Thanx."

golfnow User ID: 4412328 206254
Reviewed Aug. 20, 2010

"Tastes more cake-like than a brownie but will definitely make it again!"

flyglo User ID: 1401480 135577
Reviewed Aug. 20, 2010

"I did not think this cake had quite enough chocolate flavor for me. And I am not a "chocoholic". I loved the texture and moistness however and will use the plain yogurt instead of buttermilk in my zucchini cake recipe-it has a lighter taste. If I was to make this again-I would definitely increase chocolate or add another chocolate (maybe chips). Also increase sugar a bit if you do not frost them."

jsouba User ID: 1788691 135554
Reviewed Aug. 3, 2010

"YUMMY!!!!! These bars were super moist and the frosting was amazing! Had to savor each bite, couldn't get enough! Made 2 pans with all my garden zucchini, will freeze a bunch!"

tjsgirl User ID: 3696233 55153
Reviewed Oct. 19, 2009

"These are the most wonderful Brownies ever. Moist, and sweet, the texture is great. I made these for an event at Church, and they were a big hit. Our Pastor loved them, and took some home, as others did too.

Connie Johns, Aberdeen, Wa"

judypate User ID: 2679307 59284
Reviewed Aug. 26, 2009

"when you changed the icing did you have trouble with the icing pulling away from the brownie? I did as you did, and my icing didn't stay on when I cut a piece.  "

Charobic User ID: 947618 59243
Reviewed Sep. 13, 2008

"I found these kind of bland. Needs more chocolate! If I were to make them again, I'd throw the remaining 1 1/3 cups of chocolate chips into the batter."

rideatrekPa User ID: 766176 206253
Reviewed Jul. 30, 2008

"These are fantastic !! I changed the recipe just a bit. I added a dash of cinnamon to the batter, and changed the frosting to 2/3 cup peanut butter and 1/2 cup semi-sweet chocolate chips and added 1/4 cup chopped nuts."

elaines kitchen User ID: 2223851 135794
Reviewed Feb. 24, 2008

"Great use for your extra ZUCCHINI - or - shred extra - when making ZUCCHINI bread recipe !!"

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