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Frosted Brownie Blondies

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This small batch of chocolate Frosted Brownie Blondies are a cross between a brownie and blondie,  The fudgy chocolate you love in a brownie combined with the butterscotch goodness of a blondie.  The bars are finished with a creamy chocolate butter-free frosting.  

Sliced brownie blondies with frosting on wax paper

Frosted Brownie Blondies

Full disclosure:  this recipe happened by accident.  A happy accident as it turns out.  I tried to get fancy and cook a butterscotch sauce for what was originally a blondie recipe.  Wouldn’t you know it – the butterscotch sauce wasn’t cool enough when I added the chocolate chips.  So you can guess what happened next.  I decided to just go with it, and BAM!  These little frosted brownie blondies, or ‘Browndies’, were born!

Now, I’m sure I’m not the first one to run across the whoops moment when adding chocolate chips to a heated syrup.  However, I am owning this as my new go-to brownie recipe!

And just for good measure, we’ve gone ahead and frosted these delightful little bars.  And I will be upfront and proud to say that the chocolate frosting is made without butter!  Have no fear though, there is still butter in the browndies.  🙂

Frosted brownie blondies arranged on a white plate

What is a Brownie Blondie (a.k.a Browndie)

Something that is delicious, obvs.  Kidding aside, they are simply a joining of a brownie and a blondie.  Here are some of the differences:

  • Brownies typically use granulated sugar.  These use brown sugar – just as you would a blondie.
  • Blondies usually only have intact chocolate chips.  The chocolate chips in these browndies have been melted along with the brown sugar (more on that in a moment).
  • Brownies may include cocoa powder for an extra chocolate flavor.  We are not using that here.   I wanted the mixture of flavors to really come through with this recipe (i.e. chocolate + butterscotch). 

The result is a fudgy, soft bar – that still has that classic brownie crackly top – that may have you questioning why you haven’t tried these before!

Melting Brown Sugar and Chocolate Chips

Say what?!  Because this is how the happy accident happened, I am sticking with it.  Also, when you melt down the brown sugar, you do start to impart a bit of butterscotch flavor.  Similar to how I make butterscotch pudding.

You will see in the recipe I add a bit of water when you are melting everything together.  This just helps the mix not overcook or burn.  So, you have to trust me on this one.  It all comes together quickly, so the step of melting everything together doesn’t add all that much time.  Plus, it is so worth it!

Stack of frosted brownie blondies on a table
Frosted brownie blondies cut into squares on a piece of parchment paper

Baking in a Loaf Pan

One of the essential kitchen tools when baking small batch desserts is the 9-inch x 5-inch loaf pan.  Depending on how you slice your brownies (or other baked treats you may bake in the pan), you can get 2, 4, 6 or even 8 slices of goodness. 

Because bars are pretty indulgent, I sliced them into smaller servings for 8.  Though, when you eat two at a time, you still go through them pretty quickly.  

You could certainly use a 6-inch square or round pan, but most likely you have a loaf pan already.  If not, I’ve included a link to the one I use above!

Chocolate Frosting

This super yummy and eat-by-the-spoonful chocolate frosting is made without butter!  Oh goodness no you say!  To be clear though, I cannot call it vegan frosting because the chocolate chips used still have milk fat in them. 

But, if you are wanting to take it all the way to vegan, you can find vegan chocolate chips at your specialty grocery.  Or, just use unsweetened chocolate.  I personally, prefer the flavor of the chocolate chips with a little sugar and fats in them.   

Small batch of brownie blondies made in a loaf pan

Frosted Brownie Blondies

Yield: 6 Servings
This small batch of chocolate Frosted Brownie Blondies are a cross between a brownie and blondie,  The fudgy chocolate you love in a brownie combined with the butterscotch goodness of a blondie.  Finish the bars with a creamy fudge frosting or butter free chocolate frosting. 
Prep10 minutes
Cook22 minutes
Total32 minutes



Brownie Blondies

  • ½ cup light brown sugar
  • 2 tablespoons unsalted butter
  • 1 tablespoon water
  • cup semi-sweet chocolate chips (or bittersweet/dark)
  • ½ teaspoon vanilla extract
  • ½ cup all-purpose flour
  • ½ teaspoon baking powder
  • ¼ teaspoon salt
  • 1 large egg, room temperature


Brownie Blondies

  • Preheat oven to 350F degrees and adjust oven rack to the middle position. Line a 9×5 inch loaf pan with a piece of parchment paper to fit the length of the pan, and long enough the hang over the sides. This creates a sling to lift the brownies out of the pan.
  • In a small saucepan, cook the brown sugar, butter, water (this helps the sugar to dissolve evenly and not burn) and chocolate chips over medium heat until the sugar has melted – about 3 to 5 minutes. Remove from the heat and stir in the vanilla extract. Let cool slightly.
    ½ cup light brown sugar, 2 tablespoons unsalted butter, 1 tablespoon water, ⅓ cup semi-sweet chocolate chips, ½ teaspoon vanilla extract
  • In a small mixing bowl, whisk together the flour, baking powder and salt. Stir in sugar mixture and the egg. Mix until no dry streaks remain.
    ½ cup all-purpose flour, ½ teaspoon baking powder, ¼ teaspoon salt, 1 large egg, room temperature
  • Pour the batter into the prepared pan and spread evenly. Bake for 20 to 22 minutes, or until a toothpick inserted in the middle comes out with moist crumbs. Cool the brownies in the pan set on a wire rack for 10 minutes. Then lift the brownies out of the pan and cool completely on the wire rack.


  • Prepare the frosting according to the recipe. You can make the frosting ahead of time and refrigerate. When ready to use, bring the frosting to room temperature and give a good stir.
    Chocolate Butter Free Frosting, Chocolate Fudge Frosting
  • Frost cooled brownies and cut into desired sliced. Enjoy!
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Course: Dessert
Cuisine: American
Author: Erin Cernich


Calories: 212kcal | Carbohydrates: 31g | Protein: 3g | Fat: 9g | Saturated Fat: 5g | Polyunsaturated Fat: 0.5g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 42mg | Sodium: 151mg | Potassium: 105mg | Fiber: 1g | Sugar: 22g | Vitamin A: 167IU | Calcium: 49mg | Iron: 1mg
Nutrition information is calculated by a third-party and should only be considered an estimate and not a guarantee.
About the author photo.

about the author ...

I'm Erin and I'm all about desserts - and a little bit of butter!

I've tested, written, and photographed hundreds of recipes on my website. Here you'll find the tastiest small batch gluten free and traditional desserts - all homemade, all simple, and all for you!

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4 thoughts on “Frosted Brownie Blondies”

  1. 5 stars
    Made these today, turned out great! I made them vegan by substituting vegan butter for the regular butter and aquafaba for the egg. Thanks for the recipe! Will make these again for sure!

    1. Erin | Butter and Bliss

      Thank you Helena! So glad that you enjoyed the blondies and thanks for letting me know they worked out when made vegan!

  2. 5 stars
    I made these yesterday for our 4th of July festivities, and they turned out great! I live in Denver and often struggle to bake at altitude so happy to find your site. Look forward to trying more of your recipes!

    1. Erin | Butter and Bliss

      Hi Jen – So happy to hear you liked them! These may be one of my fav’s – I like the mix of brownie/blondie. And good to meet a fellow Coloradoan! Baking at altitude is a bit of challenge, but I’m slowly figuring it out 🙂