mocha brownies with coffee frosting

I am a brownie connoisseur. I’ve loved them since I was a little girl, and will continue loving them until I am a very, very old girl. To date, I have 34 brownie recipes on the site. And I love each and every one of them like they are my children. My brownie children. And though you supposedly love all of your children equally, I do have to admit that these mocha brownies are, like, top 10% brownies.

The base is a slightly cakey mocha brownie made with lots of cocoa. I decided to go a bit lighter than a fudgy brownie to let the coffee frosting and Oreos shine. The coffee frosting may just be the best part of these heavenly squares. It’s flavorful and sweet and fluffy.

Of course, the Oreos are also pretty amazing. They add in that crunch factor that I just love. And they look awesome.

mocha brownies on a countertop

How to make these mocha brownies

The base of these mocha brownies is fairly straightforward to make. You first need to melt the butter and sugar together in the microwave. You’re looking for the mixture to bubble slightly, but not burn! Combine the melted butter and sugar with some strong coffee (you need it to be really strong so the coffee flavor shines through). Let that all cool down for a few minutes before adding in the cocoa powder, eggs, and vanilla extract. Stir in the flour and salt, then pour into a greased 9 x 9-inch pan.

Bake the mocha brownies for 30 minutes, or until a knife inserted into the very middle comes out mostly clean. Personally, I think under baking the brownies ever so slightly is the way to go, because it makes them super fudgy. But if you prefer more cake-like brownies, bake them for a little longer.

Let the brownies rest in the hot pan for 15 minutes once they’re out of the oven, and then transfer them to a cooling rack and allow them to cool completely before frosting them. (Frosting warm baked goods is never a good idea! The frosting runs everywhere and makes a huge mess).

The coffee frosting is super easy to make—simply combine room temperature butter, powdered sugar, a tablespoon of coffee, and cocoa powder in a stand mixer and whip until light and fluffy. Spread that coffee goodness onto the brownies and crumble Oreos over the top. Delicious!

mocha brownies with coffee frosting and crumbled oreos

Hope you enjoy these mocha brownies as much as I did. Pro tip: you can even drizzle a little coffee on top of the brownie for a sort of brownie affogato!

Happy weekend 🙂

Print

Mocha Brownies with coffee frosting and oreos

Scale

Ingredients

  • 1 1/2 cups sugar
  • 3/4 cup butter
  • 1/4 cup strongly brewed coffee
  • 1/2 cup unsweetened dutch cocoa powder
  • 3 large eggs, room temp
  • 1 teaspoon vanilla extract
  • 1 cup flour
  • 3/4 teaspoon salt

For the frosting

  • 1/4 cup butter
  • 1 cup powdered sugar
  • 1/2 teaspoon cocoa powder
  • 1 tablespoon strongly brewed coffee
  • 8 oreo cookies, crumbled

Instructions

  1. Preheat oven to 350°F. Grease and line a 9″x9″ glass pan with parchment paper. Set aside.
  2. In a microwave-safe bowl, melt the butter. Remove from microwave, stir in sugar, and melt again for 30 seconds. You want the sugars and butter to bubble up slightly, but not burn. This amount of time should do the trick.
  3. Remove mixture from microwave and stir in coffee. Allow to cool slightly before whisking the cocoa powder, eggs, and vanilla extract. Last, mix in flour and salt.
  4. Pour batter into prepared pan. Bake for 30 minutes, or until a knife inserted in the center of the brownies comes out mostly clean (a little batter is fine, it will turn into delicious fudgyness). Allow to cool for 15 minutes before removing from pan. Allow to cool completely.
  5. To make the frosting, whip together all ingredients until light and fluffy. Frost brownies and sprinkle with crumbled oreos, then cut into 9 large squares.

More easy brownie recipes from Broma Bakery:

Bakery Style Whole Wheat Brownies

Ultimate S’mores Brownies

Peanut Butter Brownies

Salted Caramel Skillet Brownie

Blackberry Cheesecake Brownies

46 comments

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Monique @ ambitious kitchen
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What in the heaven are these?! Crack brownies. I woke up to find these bad boys. Literally still laying in bed … now drooling.

Sarah | Broma Bakery
Sarah | Broma Bakery
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Merp alskdfoiej hegggggg love yew

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Tracy H
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This is the best brownie recipe i have ever made! Rich flavors! I could have eaten the whole bowl of frosting by itself. Thanks!

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Megan @ Meg is Well
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If I poured coffee over them, it could count as breakfast right? So yummy looking!

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Oh 100%!!!

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Ellie | Hungry by Nature
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Take me to brownie heaven! These looks glorious girl!

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Thank you!!

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heather (delicious not gorgeous)
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i actually like cakey brownies more than fudgey brownies (i still love fudgey ones, just not as much), but it seems everyone (or at least most bloggers) are in the fudgey camp. so glad to see these cakey brownies! also- that frosting looks dreamyyyy.

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

So glad to hear that you’re a fan, then! Thank you Heather!

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Mike Moloney
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And just like that, I’m hungry again. ? Amazing work.

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Job well done, I’d say.

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Karen O
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I love cakey brownies too. I am happy to see these. The frosting looks delicious!

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Yay! Enjoy, Karen! 🙂

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Gaby Dalkin
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I agree with Monique. These are crack brownies!! I really can’t comprehend them.

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

I need to make em for ya

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Isabela
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These look incredible! I cant wait to make them!

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Can’t wait to see, sweet pea!

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Medha @ Whisk & Shout
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I laughed out loud at “My brownie children”. I feel that way about every batch of brownies I make- I just love those little chocolate squares so darn much! Pinning 🙂

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

It’s so true, hahaha!

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Stephanie @ Girl Versus Dough
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I literally cannot wait to get these brownies in my belly.

Sarah | Broma Bakery
Sarah | Broma Bakery
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Brownie party. Let’s do it.

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Jennifer @ Seasons and Suppers
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I like brownies in any way (cakey, fudgey, whatever). These are awesome! Love the coffee and cookies 🙂

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Thank you Jennifer!

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Quin @ Butter Be Ready
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I absolutely love brownies, especially cakey brownies. Definitely making these pronto!

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Mariana
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34 recipes?!?! Wow that’s amazing! Chocolate and coffee are a winning combo!

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Amy | Club Narwhal
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You are the best brownie fairy godmother a girl could ask for! These are like pure magic and I wish I could take a bite of one (or the pan) right this second 😉

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Cecilie Amalie Brevadt
Reply

Wow! They look SO yummy!
I really have to try to make these <3 Thanks for sharing!

http://cillesunivers.dk/

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Joanne
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I want to bake a batch of brownie children!! Especially if they have a hint of coffee flavor…BEST BROWNIE CHILDREN EVER.

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Annie
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These brownies are the best I’ve ever had! And the coffee frosting…yummmmmmmmy. I topped mine with chocolate shavings instead of oreos. Everyone goes crazy over them!

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Jack
Reply

How exactly do you make strongly brewed coffee?
And is it the same cocoa powder for both parts?
I’ve never made brownies from scratch

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Hi Jack! You just add extra coffee grounds to your coffee maker, resulting in a stronger brew. And yes, same cocoa powder for both (NOT hot cocoa powder).

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Ingrid
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They look AMAZING!!! I’m drooling. Will it taste like coffee without the frosting?

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Yes, it’s a subtle flavor in the cake, but noticeable still.

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Erin
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does the butter need to be salted?

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

You can always use unsalted butter and add in a 1/4 teaspoon of salt!

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Ella
Reply

Hi Sarah – really excited to try this recipe! Are you by any chance able to provide the ingredients in metric? :/

Sarah | Broma Bakery
Sarah | Broma Bakery
Reply

Hey Ella! I’m so sorry–I don’t have the ingredients in metric to give you 🙁

Definitely something I’m thinking about for future recipes though!

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