Spring Confetti Blondie Bars Recipe

Is there anything more frustrating than baking a special treat, only to have your kids poke at it and declare it “too brown” or “too boring”? I feel that in my soul. We want to make fun memories, not food fights. If you’re looking for another cozy, crowd-pleasing bar, you must try these Cinnamon Sugar Blondies.

That’s why I’m so excited to share our family’s new favorite solution: Spring Confetti Blondie Bars. They are the ultimate happy medium. They feel like a party but come together with almost zero fuss. I promise, this is one recipe where everyone will ask for seconds.

Recipe Overview

• Cuisine: American
• Category: Dessert, Snack
• Prep Time: 10 minutes
• Cook Time: 25-30 minutes
• Total Time: 40 minutes (plus cooling)
• Servings: 16 bars

Why Even My Picky Eaters Love This!

Let’s be real. Sprinkles are magic. They transform the ordinary into a celebration. These blondies are soft, chewy, and packed with colorful sprinkles in every single bite.

The texture is just right—not too cakey, not too dense. And because they’re made with a simple cake mix hack, they’re reliably perfect every single time. No weird textures or surprises to scare off sensitive palates.

Our Family-Friendly Ingredient List

I keep things super simple. You probably have most of this in your pantry right now. Here’s what you need:

• 1 box (15.25 oz) yellow cake mix (the standard kind, not “pudding in the mix”)
• 1/3 cup vegetable oil or melted coconut oil
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup rainbow sprinkles (jimmies work best, not nonpareils)
• Optional: 1/2 cup white chocolate chips for extra sweetness

How to Get the Kids Involved in Cooking This

This is a fantastic first baking project. The steps are simple and the payoff is huge. My kids fight over these jobs.

Task 1: The Sprinkle Captain. Their only job is to measure and pour the sprinkles into the batter. It’s a job that requires serious focus (and a little taste-testing).

Task 2: The Pressing Patrol. After we spread the batter in the pan, I let them gently press in a few extra sprinkles on top. It makes them so proud to see their decoration work.

The Full Step-by-Step Instructions

Don’t let the word “baking” scare you. This is the easiest process. I’ve made these when I’m totally wiped out from the day.

Recipe

Spring Confetti Blondie Bars Recipe

Make Spring Confetti Blondie Bars Recipe with simple ingredients and clear steps. Prep, cook, and enjoy—perfect for cozy evenings.

Author: Ashley Vaughn

Prep: 10 min | Cook: - | Total: 40 min

Serves: - 4 + bites

★ Rate 🖨 Print

Our Family-Friendly Ingredient List

• 1 box (15.25 oz) yellow cake mix (the standard kind, not “pudding in the mix”)
• 1/3 cup vegetable oil or melted coconut oil
• 2 large eggs
• 1 teaspoon vanilla extract
• 1/2 cup rainbow sprinkles (jimmies work best, not nonpareils)
• Optional: 1/2 cup white chocolate chips for extra sweetness

The Full Step-by-Step Instructions

1

Preheat your oven to 350°F (175°C). Line an 8×8 or 9×9 inch baking pan with parchment paper, leaving some overhang on the sides. This makes lifting out the blondies so easy!

2

In a large bowl, combine the dry cake mix, oil, eggs, and vanilla. Stir with a wooden spoon or spatula until a thick, sticky dough forms. It will be thick, and that’s perfect.

3

Now for the fun part! Fold in the 1/2 cup of rainbow sprinkles (and white chocolate chips, if using) until they’re evenly distributed.

4

Transfer the dough to your prepared pan. Use your hands or the back of a spoon to press it into an even layer. Sprinkle a few more sprinkles on top for good looks.

5

Bake for 25-30 minutes. You want the edges to be golden brown and the center to look just set. A toothpick inserted might have a few moist crumbs, but not wet batter.

6

This is the hardest part: let the pan cool completely on a wire rack. I know it’s tempting, but cutting into warm blondies makes them crumble. Once cool, use the parchment paper to lift the whole slab out onto a cutting board and slice into bars.

Notes

Enjoy your homemade Spring Confetti Blondie Bars Recipe!

Nutrition Information

These are dessert bars, so they are a sweet treat.:

Using the cake mix means the ingredients are standard and familiar.:

You can use coconut oil for a slightly different fat profile.:

For a little protein boost, I sometimes stir in 1/4 cup of vanilla protein powder with the dry mix.:

Did You Make This?

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1. Preheat your oven to 350°F (175°C). Line an 8×8 or 9×9 inch baking pan with parchment paper, leaving some overhang on the sides. This makes lifting out the blondies so easy!
2. In a large bowl, combine the dry cake mix, oil, eggs, and vanilla. Stir with a wooden spoon or spatula until a thick, sticky dough forms. It will be thick, and that’s perfect.
3. Now for the fun part! Fold in the 1/2 cup of rainbow sprinkles (and white chocolate chips, if using) until they’re evenly distributed.
4. Transfer the dough to your prepared pan. Use your hands or the back of a spoon to press it into an even layer. Sprinkle a few more sprinkles on top for good looks.
5. Bake for 25-30 minutes. You want the edges to be golden brown and the center to look just set. A toothpick inserted might have a few moist crumbs, but not wet batter.
6. This is the hardest part: let the pan cool completely on a wire rack. I know it’s tempting, but cutting into warm blondies makes them crumble. Once cool, use the parchment paper to lift the whole slab out onto a cutting board and slice into bars.

Fun Twists for Different Tastes

One batch, many possibilities! Here’s how we mix it up depending on the crowd.

For the Chocolate Lovers: Swap the yellow cake mix for a devil’s food mix and use chocolate chips instead of sprinkles for super fudgy brownie-style bars.

For a “Grown-Up” Batch: Add 1/2 cup of chopped toasted pecans or walnuts to the batter along with the sprinkles. The crunch is amazing.

For Holiday Fun: Use holiday-colored sprinkles! Red and green for Christmas, pastels for Easter, red/white/blue for the Fourth of July. Instant themed treat.

Storing & Reheating (Perfect for Busy Nights)

These bars are a lifesaver for lunchboxes and after-school snacks. I always make a double batch. For a healthier, on-the-go option that’s just as easy, check out these Healthy Banana Oatmeal Bars.

Store cooled bars in an airtight container at room temperature for up to 4 days. They stay wonderfully chewy. You can also freeze them for up to 3 months. Just separate layers with parchment paper in a freezer bag. Thaw at room temperature or pop a frozen one right into a lunchbox—it’ll be thawed by snack time!

Nutrition Notes

I’m all about balance. These are a treat, and that’s okay! Here’s a simple look at what’s inside.

• These are dessert bars, so they are a sweet treat.
• Using the cake mix means the ingredients are standard and familiar.
• You can use coconut oil for a slightly different fat profile.
• For a little protein boost, I sometimes stir in 1/4 cup of vanilla protein powder with the dry mix.

FREQUENTLY ASKED QUESTIONS

Can I use a different type of cake mix?

Absolutely! White or vanilla cake mix works just as well. I don’t recommend angel food or “extra moist” mixes with pudding, as they can change the texture.

Why did my sprinkles bleed their color?

This can happen with certain brands of sprinkles, especially if you use the round nonpareil kind. For the best color, use “jimmies” (the little rod-shaped sprinkles). They hold their color better during baking.

My dough is really thick and hard to stir. Is that right?

Yes, that’s exactly right! This blondie dough is meant to be very thick and sticky, not a runny cake batter. That’s what gives you those dense, chewy bars we love. Just keep mixing—it will all come together.

There you have it! My secret weapon for putting a smile on everyone’s face without spending all day in the kitchen. These cheerful bars prove that a little color and a lot of simplicity can win over even the toughest critics at your table.

They’re perfect for birthdays, spring celebrations, or just a regular Tuesday that needs a bright spot. I truly hope this recipe brings as much joy to your kitchen as it has to mine. And if you’re looking for more simple, wholesome snacks, remember that those banana oatmeal bars are always a great choice.

I’d love to know if this was a hit with your family! Did your sprinkle captain do a good job? Please leave a comment and rating below!