Funfetti Blondies

Hey sweet things! Do I have a treat for you today! Let’s talk about Funfetti Blondies. These bar cookies are little squares of heaven, bursting with colorful sprinkles that just scream “party!” They’re buttery, chewy, and filled with nostalgia — like those confetti cakes from your childhood, but dare I say, even better. You definitely need these in your life, especially when you need some edible fun.
Let me just tell you why these blondies are on heavy rotation in our kitchen. My husband practically inhales them straight out of the oven — watching him burn his tongue and then keep going is half the fun! And my kids? They go nuts over these like it’s the first time every single time. So, whether it’s a random Tuesday or a birthday bash, these Funfetti Blondies are my go-to crowd-pleaser every darn time.
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Why You’ll Love This Funfetti Blondies
– Rainbows. Who doesn’t love a dessert that looks like a unicorn exploded?
– They’re idiot-proof. Even if you swear you can’t bake, you can nail these.
– Party-ready in under an hour. Because sometimes you forget your kid’s bake sale until the night before… been there.
– They’re the perfect excuse to eat cake for breakfast. No judgment here!
How to Make It
Alright, let’s get messy! First things first — crank that oven to 350°F. While it’s heating up, gather your ingredients and try not to eat those sprinkles straight out of the jar. Whisk your dry ingredients together. Meanwhile, melt some butter. Yup, that’s the secret to chewy bliss. Mix it with sugar, an egg or two, and a splash of vanilla. Now add your dry mix and throw in a scandalous amount of sprinkles. Pour it all into a greased pan. Bake until your house smells like a bakery and they’re just set. Try not to dive in face-first when they come out!
Ingredient Notes
– Flour: You know, the thing that helps hold everything together. Be gentle when measuring. Over-packing the cup? Rookie mistake.
– Butter: Go for unsalted if you can; you want to be in control of the saltiness here. Melt it or else you’re gonna have chunky blondies.
– Sprinkles: More is always better. Trust me, don’t skimp. Once tried doing half the amount — never again!
Recipe Steps
1. Preheat your oven to 350°F.
2. Mix dry ingredients in a bowl.
3. Melt the butter and combine with sugar, eggs, and vanilla.
4. Stir in dry ingredients until just mixed.
5. Fold in sprinkles; don’t be shy!
6. Pour into a greased pan and bake for 20-25 minutes.
7. Let cool (or don’t — I get the impatience).
What to Serve It With
Tips & Mistakes
Storage Tips
Okay, if by some miracle there are leftovers, stash these in an airtight container on the counter for a few days. But let’s be real — it probably won’t come to that. Eat ‘em cold, sneak them for breakfast… trust me, “forgotten” blondies are just as dangerous.
Variations and Substitutions
Been in a pinch and ran out of sprinkles? Choc chips work too! Or swirl in a spoon of peanut butter. Once subbed in brown sugar for white when I was fresh out, and it added a caramel touch that was oh-so-yum.
Frequently Asked Questions

Funfetti Blondies
Ingredients
Main Ingredients
- 1 cup unsalted butter
- 1.5 cups light brown sugar
- 2 large eggs
- 2.5 cups all-purpose flour
- 0.75 teaspoon baking powder
- 0.5 teaspoon salt
- 1 cup white chocolate chips
- 0.75 cup rainbow sprinkles Use jimmies style for best results
- 2 teaspoons vanilla extract
Instructions
Preparation Steps
- Preheat the oven to 350°F (175°C). Line a 9x13 inch baking pan with parchment paper and lightly grease.
- Melt the butter in a saucepan over medium-low heat. Remove from heat and stir in the light brown sugar until smooth.
- Beat in the eggs, one at a time, then stir in the vanilla extract.
- In a separate bowl, whisk together the flour, baking powder, and salt. Gradually add to the wet ingredients and mix until just combined.
- Fold in the white chocolate chips and rainbow sprinkles.
- Spread the batter evenly into the prepared pan and bake for 25 minutes or until a toothpick inserted into the center comes out clean.
- Allow to cool completely before cutting into squares. Enjoy!
Notes
Featured Comments
“Super easy and so flavorful! My family asked for seconds. Saving this one.”
“This creamy recipe was will make again — the rich really stands out. Thanks!”
“This sweet treat recipe was so flavorful — the rich really stands out. Thanks!”
“Made this last night and it was so flavorful. Loved how the sweet treat came together.”
“New favorite here — will make again. rich was spot on.”
“New favorite here — so flavorful. rich was spot on.”