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Brownie Batter Frosting

Thanks for sharing!

Rich fudgy frosting with brownie mix whipped right in. This chocolate goodness is just begging to be put on your next cake.

Swirl of chocolaty brownie batter frosting.

Frosting is the literal icing on top. That saying exists for good reason.

It is the frosting that really makes or breaks a cake. It makes all of the difference.

Any old cake can be made extraordinary with a perfect frosting. This fudgy goodness has brownie mix right inside.

It makes for a super delicious topping for a variety of cakes. We put it on a butter cake this time.

MiMi originally shared this recipe in 2015. Back in the days when I was a frosting aficionado and not yet the self appointed queen of frosting!

MiMi has always love dense fudgy chocolate frosting like the almost flaky chocolate frosting on her official birthday cake, her grandma’s french butter cake with fudge frosting. This is similar to that in a lot of ways, but with buttercream flexibility.

Hand holding mixer paddle with lots of brownie batter frosting on it.

What MiMi had to say about this recipe is 2015

I had some bananas that were getting a bit soft. My first thought was banana bread but then I decided I needed a dessert.

Carlee has made Di’s Banana Cake several times so it must be a hit. I decided to make that and change it a little by trying a new frosting.

I had just created a Brownie Batter Ice Cream recipe so I had some brownie mix left. What a great way to top banana cake.

I like a thick fudgy frosting so that is what I made. It is thick, rich and yummy.


More great chocolate frosting recipes:

If you are looking for a slightly fluffier frosting that maintains the rich chocolate flavor, try making chocolate sweetened condensed milk buttercream. It is perfect for spreading over cakes or piping on cupcakes.

Or whip up white chocolate buttercream. It is super fluffy and has a great white chocolate flavor but is still super versatile.

Piece of cake topped with brownie batter frosting and sprinkles.

For another great spreading frosting, try shiny fudge frosting. It works great for layer or sheet cakes, but is not meant to be piped. The sheen and flavor on that one is amazing!

If you are a frosting lover like me and want to learn more about all of the different types of frosting, check out my frosting 101 post. It tells you the difference between Italian meringue buttercream, Russian buttercream, ermine frosting and more.

Yield: 12 Servings

Brownie Batter Frosting

Hand holding mixer paddle with lots of brownie batter frosting on it.

Rich fudgy frosting with brownie mix whipped right in. This chocolate goodness is just begging to be put on your next cake.

Prep Time 10 minutes
Total Time 10 minutes


  • 1 cup brownie mix
  • 1/2 cup cocoa powder
  • 1 cup butter, softened
  • 1 Tablespoon vanilla extract
  • 1 Tablespoon milk
  • 3 cups powdered sugar
  • 1 Tablespoon hot water


  1. Place cocoa powder and brownie mix in bowl and whisk together.
  2. Add the butter and vanilla and mix well.
  3. Add milk and slowly add the powdered sugar while beating on medium speed. Add the hot water and beat on medium for about a minute.

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Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 342Total Fat: 19gSaturated Fat: 10gTrans Fat: 1gUnsaturated Fat: 7gCholesterol: 41mgSodium: 180mgCarbohydrates: 44gFiber: 1gSugar: 27gProtein: 2g

All nutritional information is estimated and will depend on the exact ingredients you use.

Did you make this recipe?

I'd love to see it! Share a picture on Instagram or Pinterest and tag me @carleecooks to let me know how it went!

Rich fudgy frosting with brownie mix whipped right in. This chocolate goodness is just begging to be put on your next cake.

Thanks for sharing!

Andrea Nine

Friday 4th of June 2021

You’ve done it again my friend! YUMMO! So creative too. Have a great weekend!


Sunday 6th of June 2021

You too, Andrea! Thanks!


Monday 7th of December 2015

This looks fantastic!!! Thank you for linking up last week to Creative K Kids’ Tasty Tuesdays. I have pinned your post to our Tasty Tuesdays Pinterest Board! I hope to see you again this week!


Monday 7th of December 2015

Thank you so much!

Christine | Mid-Life Croissant

Wednesday 2nd of December 2015

Oh this is such a great idea! Delicious. Thanks for linking up to #SaucySaturdays.


Wednesday 2nd of December 2015

It is so fudgy and amazing! Thanks for hosting!


Sunday 29th of November 2015

Oh my gosh! This sounds amazing. Great reuse for the extra brownie batter mix.

Wishes for tasty dishes, Linda


Sunday 29th of November 2015

Thank you! We have been loving brownie batter recipes lately. We did brownie batter puppy chow and brownie batter ice cream too! Yum!


Saturday 28th of November 2015

You had me at brownie, then you really had me at frosting. I would sit and eat this with a spoon. I think it needs me.


Saturday 28th of November 2015

I know, right?!

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