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Root Beer Float Brownies

Root Beer Float Brownies have root beer baked right in! The root beer pairs perfectly with the chocolate and it’s all topped with Root Beer Buttercream!

Two Root Beer Float Brownies on a plate

I am always looking for a new, fun way to enjoy brownies! Plus, my kids a re huge root beer float lovers, so I thought it would be fun to combine the two!

First you start with delicious chocolate, both white and dark.  I’m an equal opportunity baker.

And then there’s the Root Beer..use whatever kind you like…just let it sit out a bit so there’s no foam.

After I baked up the brownies I let them cool…but I had to try a little bit know,  for research.

The root beer in the batter gave the brownies a fine crumb, but the melted chocolate gave them a rich fudgy texture.  Really yummy!  You can’t taste the root beer in the brownies, it just changes the texture and adds a layer of sweetness.

Then of course I topped the brownies with Root Beer Frosting and a quick drizzle of chocolate syrup. Perfection!

The frosting has a subtle root beer flavoring from a little root beer extract, but if you wanted less you could leave the extract out.

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Root Beer Float Brownies

  • Author: Shelly
  • Prep Time: 20 minutes
  • Cook Time: 25 minutes
  • Total Time: 45 minutes
  • Yield: 20 brownies 1x
  • Category: Brownies
  • Cuisine: Dessert


  • 2/3 cup flour
  • 1/2 cup cocoa powder
  • 6 oz chopped semi sweet chocolate
  • 3 oz white chocolate
  • 4 Tbsp. butter
  • 3 large eggs
  • 1/2 cup white sugar
  • 1/2 cup brown sugar
  • 8 oz. root beer
  • 2 tsp. vanilla
  • 1/2 tsp salt
  • 1/2 cup butter, room temperature
  • 1/3 cup root beer, no foam
  • 5 cups powdered sugar
  • 1/2 tsp. root beer extract (optional)


  1. Preheat oven to 375°F. Line a 9×9 baking dish with aluminum foil and spray lightly with cooking spray.
  2. Sift flour, cocoa powder and salt in a large bowl and set aside.
  3. Over a double boiler (or in microwave) melt the butter, semi-sweet and white chocolates together. Remove from heat when just melted and smooth. Allow to cool for 5 minutes.
  4. In the bowl of your stand mixer fitted with the paddle attachment, mix the eggs, sugars and vanilla together on medium speed for 1 minute. Slowly add in the cooled chocolate mixture and mix until smooth, about 30 seconds.
  5. Turn the mixer to low and add the flour and root beer in alternating portions until smooth, beginning and ending with the flour, scraping the sides of the bowl as necessary.
  6. Pour batter into your prepared pan and bake for 25 minutes, or until center is just set.
  7. Let cool completely.
  8. To make frosting, mix butter and powdered sugar in the bowl of your stand mixer fitted with the paddle attachment for 1 minute on medium-low speed. Slowly add in the root beer and extract, mixing until smooth and creamy.
  9. Spread on cooled brownies.


The root beer extract is optional and is only added to amp up the root beer flavor.

Keywords: Brownies

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54 comments on “Root Beer Float Brownies”

  1. megan @ whatmegansmaking

    I’d like one of these while watching the brady bunch please. That would be perfect!

  2. sweetsugarbelle

    Just when I think you can’t top something, you go and do it again! Brilliant. And ditto kick buttkowsk. What the heck is it anyway lol. Cant beat the brady’s!

  3. I’m about to make you very jealous. When I was a little girl, I got to stand BESIDE Alice for a Christmas Eve service. How cool is that? Do I remember it? No, not really; I was a bit too young, but my mother told me I was just excited as all get out to have that honor. 🙂

    Just had to pass it along because you will appreciate it more than most people ever have. LOL!

    1. That is SO awesome!! I hope someone snapped a pic, but I guess that was prob before camera phones 🙁
      I am truly impressed!!

  4. Oh, you make me laugh Shelly:) These brownies sound amazing! The root beer float syrup is the perfect topping~what a great find!

  5. Oh Holy Cow! The tiki-idol thing is so funny! There is actually a station in KC that plays all older episodes of fun shows ala Nick at Nite…..and that exact Brady episode was on and I watched and laughed!

  6. Are you kidding me? Root Beer Float brownies? I may just die.
    I rarely got to watch the Brady Bunch (not sure why) but the one with the house of cards contest they had still has stuck in my head.

  7. bridget {bake at 350}

    I remember “playing” Brady Bunch on the playground in our neighborhood. I always wanted to be Cindy b/c she had those yarn ribbons in her hair. 🙂

  8. Man oh man! These graphic brownies are sufficient to induce saliva droplets in the mouth of the readers; imagine the power of the actual beer brownies! Damn cool!

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