★★★★★

Frosted Funfetti Blondies

Frosted Funfetti Blondies are chewy blondie bars loaded with sprinkles! Topped with a thick vanilla frosting and even more sprinkles, these are the perfect festive treat for any celebration.

You don’t have to be a kid to LOVE sprinkles. Even the most business-like adult can’t resist a colorful plate of Funfetti Cookies or a Funfetti Cupcakes.

Frosted Funfetti Blondies!! Chewy blondies loaded with colorful sprinkles and topped with a creamy vanilla frosting (with more sprinkles of course)! A fun treat that can be made festive with any color sprinkle.

Why These Blondies are Best

Using our favorite cake batter blondies as a base, today’s are even better!

  • Soft, chewy blondies with creamy vanilla flavor.
  • Sprinkles and white chocolate chips are baked right into the batter.
  • A thick layer of vanilla frosting on top for more decadent sweetness.
  • You can make them with any color sprinkles for different holidays and festivities!
Frosted Funfetti Blondies!! Chewy blondies loaded with colorful sprinkles and topped with a creamy vanilla frosting (with more sprinkles of course)! A fun treat that can be made festive with any color sprinkle.

Ingredient Notes

Along with eggs and flour, you will need these key ingredients for frosted Funfetti blondies.

  • Melted butter makes blondies super chewy and tender.
  • Light brown sugar mixed with the butter creates a slightly caramelized sweetness you’ll love.
  • Vanilla extract is the primary flavor in both the blondie bars themselves and the frosting. We love baking with this homemade Instant Pot Vanilla.
  • Sprinkles. Use long skinny sprinkles (jimmies) for this funfetti dessert.
  • White chocolate chips are the perfect mix-in to complement the colorful sprinkles!
  • Vanilla frosting is made with butter, powdered sugar, milk and additional vanilla extract.

Tips and Tricks

I’ve made more than my share of blondie recipes over the years and learned a few things along the way.

  • Line your baking pan with parchment paper. This prevents sticking and makes it easy to lift the baked blondies out of the pan when they’re done.
  • The blondies will still be soft in the middle when they are done baking. The center will set to chewy perfection as the blondies cool.
  • Change up the sprinkle colors. This is an easy way to adapt these blondies for different seasons or holidays.

Try the recipe with red and green sprinkles at Christmas, pink for Valentine’s Day, or red and blue for the 4th of July. I love trying all kinds of color combinations!

Today, I chose a variety of rainbow sprinkles for blondies with a classic birthday cake flair.

Recipe FAQs

Can I make these with other types of sprinkles?

Only jimmies style sprinkles or confetti sprinkles (the flat discs) should be used in the batter for this recipe. Nonpareil sprinkles (the round ball kind) tend to bleed color into the batter as they bake. This changes the appearance and color of the blondies. For the frosting, any kind of sprinkles can be used.

Why are my blondies greasy?

These blondies should be soft, fudgy and chewy when cooled. If your blondies are greasy you may not have mixed the ingredients together thoroughly. The butter and brown sugar should be well combined before adding the other ingredients. Adding too much flour can also cause crumbly, greasy brownies. Make sure you’re measuring flour correctly for best results.

Can blondies be frozen?

These blondies can be frozen, but for prettiest presentation, I don’t recommend it. While frozen Frosted Funfetti Blondies will taste delicious after thawing, the sprinkles will leak their color into the bars.

How should I store frosted blondies?

Store these Frosted Funfetti Blondies at room temperature. Keep them in a sealed airtight container to maintain freshness.

Frosted Funfetti Blondies!! Chewy blondies loaded with colorful sprinkles and topped with a creamy vanilla frosting (with more sprinkles of course)! A fun treat that can be made festive with any color sprinkle.

More Funfetti Desserts

Yield: 25 bars

Frosted Funfetti Blondies

Prep Time 15 minutes
Cook Time 35 minutes

Frosted Funfetti Blondies are chewy blondie bars loaded with sprinkles! Topped with a thick vanilla frosting and even more sprinkles, these are the perfect festive treat for any celebration.

Ingredients

For the Blondies:

  • 1 ½ cup light brown sugar, packed
  • ¾ cup unsalted butter, melted
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • ¼ teaspoon kosher salt
  • 1 ½ cups all-purpose flour
  • 1 cup white chocolate chips
  • ½ cup sprinkles

For the Frosting:

  • ½ cup unsalted butter, softened
  • 2 cup powdered sugar
  • 1 teaspoon vanilla extract
  • 2 Tablespoons milk
  • ⅓ cup sprinkles

Instructions

  1. Preheat oven to 350F. Line an 8-inch square baking dish with parchment paper. Set aside.
  2. In a mixing bowl, blend brown sugar with melted butter. Add in eggs and vanilla, stirring until combined. Add salt and flour, mixing until well blended. Fold in white chocolate chips and sprinkles. Pour into prepared baking dish.
  3. Bake for 32-35 minutes. Remove from oven and cool on wire rack.
  4. For the frosting, beat butter, powdered sugar, vanilla and milk for 4-5 minutes using an electric mixer, until fluffy. Fold in sprinkles. Spread over cooled bars. Cut and enjoy.
  5. Store bars in airtight container at room temperature. ENJOY.

Notes

  • Line your baking pan with parchment paper. This prevents sticking and makes it easy to lift the baked blondies out of the pan when they're done.
  • The blondies will still be soft in the middle when they are done baking. The center will set to chewy perfection as the blondies cool.
  • Change up the sprinkle colors. This is an easy way to adapt these blondies for different seasons or holidays.
  • Nutrition Information:

    Yield:

    25

    Serving Size:

    1

    Amount Per Serving: Calories: 259Total Fat: 13gSaturated Fat: 7gTrans Fat: 0gUnsaturated Fat: 5gCholesterol: 41mgSodium: 30mgCarbohydrates: 33gFiber: 0gSugar: 26gProtein: 2g

    *Nutrition facts are an estimate and not guaranteed to be accurate. Please see a registered dietitian for special diet advice.

    Did you make this recipe?

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    About Aimee

    Aimee is a dessert lover (specifically rice krispie treats), workout enthusiast, self-taught foodie, and recipe creator.

    Learn more about Aimee.

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    Posted on September 10, 2015

    Comments & Reviews

    1. Thiis recipe did not work. After baking for 35 minutes, the middle was still gooey and raw. Continued baking for another 20 minutes and the edges got done, but everything else was still gooey. Super sweet and too buttery. There was butter oozing out of the bars as you cut them. And frosting? If you put that on top, you would go into a diabetic coma. 

    2. I LOVE how your organize the sprinkles by holiday! So fun. And these blondies? Incredible. Funfetti makes everything that much more delicious (especially considering blondies are already my favorite baked good).

    3. EPIC sprinkle fail. Crazy epic. And when you knocked over that paper plate, how many expletives came out of your mouth? Just wondering. Because I would be cussing up a blue streak.
      Glitter is worse, though. It just stays forever. I’m always finding it on my kids’ scalps. And it doesn’t come off! 
      If it’s any consolation, finding sprinkles in your kitchen for months to come is worth these perfect blondies. They look so good! And now you  get to buy all new sprinkles and organize them by holiday. Which is not weird at all, btw. 

    4. Sprinkles and blondies…two of my favorite things!  Love all the fun color in these yummy treats!  And yes frosting is necessary!  

    5. Dear Aimee, these look fun and decadent.  I should bake more often with sprinkles.  I’m with Kellie, I would not have noticed either…I feel like I lose something everyday.  After a while, you just get used to it! Pinning these for later. xo, Catherine

    6. I wouldn’t have noticed my sprinkles were out of order….there is no order in my pantry.  How I wish I were organized….but I’d rather sit and eat a pile of these fabulous blondies.  They look fantastic!

    7. People call glitter the herpes of the craft world… I think spilled sprinkles are the herpes of the baking world. HAHAHA 😉 LOVE this recipe though!!! 

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