Black Bottom Coconut Squares

Black Bottom Coconut Squares ~ for those times when you can’t decide what you want for dessert: creamy coconut bars, or rich chocolatey brownies? ~ with this recipe you get the best of both!

Photo of Black Bottom Coconut Squares on a napkin with a glass of milk in the background.

I can’t believe it, the kids here in Southern California are going back to school next week. Back to school rituals were  so important in our family when my kids were growing up that even though both my daughters will go back to school this September far from home, some of the old feelings of nervous excitement  hover around the house. Let’s face  it, no matter what age or how smart your kids are, school is a struggle, whether it’s social, emotional, academic, or just plain physical — the school day is exhausting.

I tried hard to make my kids comfortable with school in any way that I could, and one of the little ways I did that was with special foods. Making treats like these squares just seems natural to me at this time of year. They might  be waiting for them when they got home after a long day, neatly packed in their lunch bags, or sent along for a whole class to enjoy.

Close up photo of two Black Bottom Coconut Squares on a napkin with a glass of milk in the background.

TIP: Making (or buying!) special treats to have on hand when kids get home from a long day at school is a great parenting technique ~ I think it sends a reassuring message that says I value what you’re doing and encourages kids to feel good about their efforts.

Photo of a tray of Black Bottom Coconut Squares.

I just couldn’t resist the name, of these, can you? There’s a dark chocolate brownie layer under a chewy macaroon style coconut topping, and the two together are wonderful. These are from Martha Stewart.  They’re simple to throw together, in fact you can do it all in one bowl if you rinse it out between making the bottom and the top.

Photo of Black Bottom Coconut Squares on a napkin with a glass of milk in the background.

Love coconut?

Close up photo of two Black Bottom Coconut Squares on a napkin with a glass of milk in the background.
3.12 from 43 votes

Black Bottom Coconut Squares

Black Bottom Coconut Squares ~ for those times when you can't decide what you want for dessert: creamy coconut bars, or rich chocolatey brownies? ~ with this recipe you get the best of both!
Course Dessert
Cuisine American
Prep Time 30 minutes
Cook Time 30 minutes
Yield 12 servings
Calories 301.66kcal
Author Sue Moran


For the brownie base

  • 1/2 cup 1 stick unsalted butter
  • 1/2 cup sugar
  • 1/4 teaspoon salt
  • 1 large egg
  • 1/4 cup unsweetened cocoa powder I used dark 'Dutched' cocoa
  • 1/4 cup all-purpose flour

For the topping

  • 2 large eggs
  • 3/4 cup sugar
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1 package sweetened shredded coconut 7 ounces, 1/2 cup reserved for sprinkling


  • Set oven to 375F
  • Grease a 9x9 square baking pan. I like to line it with parchment paper with overhanging edges so I can remove it from the pan easily.
  • Melt the butter in a large microwave safe bowl in the microwave. Whisk in the sugar, then the salt, and the egg. When it is well combined, whisk in the cocoa powder. Then fold in the flour.
  • Spread the batter evenly in the pan and bake for about 15 minutes. It will start to look cooked around the edges. Don't over bake. Set aside while you make the topping.
  • To make the topping, whisk the 2 eggs with the sugar and vanilla. Fold in the flour and the coconut (except the 1/2 cup reserved)
  • Drop the coconut mixture in small mounds all over the brownie layer. I used a small scoop to portion out small mounds. Sprinkle with the reserved coconut.
  • Bake for another 25 to 30 minutes until a toothpick comes out clean.


Calories: 301.66kcal | Carbohydrates: 39.83g | Protein: 3.82g | Fat: 15.1g | Saturated Fat: 10.62g | Sodium: 111.44mg | Fiber: 1.76g | Sugar: 28.09g
The nutritional information for recipes on this site is provided as a courtesy and although tries to provide accurate nutritional information, these figures are only estimates.


Don’t forget to pin these Black Bottom Coconut Squares!

More classic coconutty desserts from around the web ~

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    Leave a Reply

    Please rate this recipe!

  • Reply
    July 9, 2020 at 7:21 pm

    5 stars
    I made these tonight and they are delicious! For the reserved 1/2 cup coconut I used unsweetened coconut. And I added 1/2 teaspoon coconut extract to the topping and added some vanilla extract to the brownie base. Excellent!

  • Reply
    May 6, 2018 at 3:08 pm

    Can I make them the day before serving?

    • Reply
      May 6, 2018 at 3:15 pm

      Yes, these should hold up fine Linda.

  • Reply
    April 30, 2018 at 10:10 am

    I wish I had one of these right now! I am a huge fan of coconut desserts!

  • Reply
    June 5, 2015 at 12:42 pm

    these look just glorious. They remind me of a traybake my husband’s cousin makes regularly, it’s always a treat to go to her house as there are always lovely cakes!

    • Reply
      June 5, 2015 at 1:16 pm

      Thanks Janice ๐Ÿ™‚

  • Reply
    Carrie Pacini
    August 9, 2014 at 11:45 am

    These coconut squares look lovely!

    • Reply
      August 9, 2014 at 1:31 pm

      Thanks Carrie!

  • Reply
    wendy olmsyead
    April 22, 2014 at 10:00 am

    Gluten free version?

    • Reply
      April 22, 2014 at 10:23 am

      Hmmm, I’ll have to look into that, Wendy — you might try substituting gluten free flour for the regular flour. Trader Joe’s has a good one.

  • Reply
    Christine @ 24 Carrot Kitchen
    August 14, 2013 at 5:21 am

    Yum! I love all the flavors in this coconut square!

  • Reply
    August 13, 2013 at 12:50 am

    that coconut layer is SERIOUS! these are attractive and undoubtedly delicious, sue–right on!

  • Reply
    August 12, 2013 at 11:50 am

    Oh man, coconut and dark chocolate sounds so good right about now! Such a perfect contrast.

  • Reply
    Cathy at Wives with Knives
    August 12, 2013 at 6:05 am

    I talked to my grandkids yesterday and could tell they are eager to see their friends again. Love that apprehension and excitement about starting a new grade. Cookies always help ease the tension.

  • Reply
    August 11, 2013 at 4:34 pm

    I LOVE these.
    I am such a lover of anything coconut.
    I once made these using or rather soaking the coconut in a bit of spiced rum.
    Should have posted that one, but the photos were horrid; winter in NE bites for light in the kitchen for photo taking.

  • Reply
    August 11, 2013 at 3:00 am

    love love LOVE these… and love the name too, sounds like a song from the 1920’s!… very scary that the summer is almost over and the kids are going back to school… what on earth happened to those long lazy days?… need one or two or three of these over a cuppa to remind me!

    • Reply
      August 11, 2013 at 8:03 am

      I know people love summer, but I’m a freak of nature, I yearn for fall. summer can’t fly by fast enough for me!

  • Reply
    August 11, 2013 at 12:40 am

    Oh goodness – they look delicious! I’m so into coconut/chocolate right now… Also, I loved your story of baking goodies for the family. One of my fondest memories growing up, was knowing something delicious would be waiting for me at home. (Thanks to my mom.) It really means so much. It’s so comforting. And kindof like being armed against the challenges of the world. ๐Ÿ™‚

    • Reply
      August 11, 2013 at 8:02 am

      I love that — armed against life’s challenges — you’re so right.

  • Reply
    [email protected]
    August 10, 2013 at 8:54 pm

    Love these black bottoms. I would have loved to come home to these, what a lovely combination of flavours.

  • Reply
    August 10, 2013 at 6:08 pm

    Making these 1st thing in the am!

  • Reply
    August 10, 2013 at 5:59 pm

    They look so good. Thank you so much for sharing!

  • Reply
    Norma - Platanos, Mangoes and Me!
    August 10, 2013 at 4:19 pm

    I love anything coconut, but this is really a wonderful surprise. Great pics.

  • Reply
    [email protected] is How I Cook
    August 10, 2013 at 1:38 pm

    You have been killing my sweet tooth lately!

  • Reply
    August 10, 2013 at 9:16 am

    It’s hard to believe it’s back to school already. These coconut/chocolate bars are perfect for this and any time of the year. I love coconut and combined with chocolate it’s a classic.

  • Reply
    Laura (Tutti Dolci)
    August 10, 2013 at 9:04 am

    Fabulous squares, I love the contrast between the brownie base and coconut topping!

    • Reply
      August 10, 2013 at 12:06 pm

      I think that’s what drew me to them in the first place..

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