Spring Funfetti Blondies

The first batch I made disappeared so fast at my sister's baby shower that I barely got to taste one. My niece kept grabbing them with both hands, leaving a trail of rainbow sprinkles across the table.

I started experimenting with blondies when I realized brownies sometimes felt too heavy for spring brunches. The combination of brown sugar and vanilla gives them this warm, caramel note that pairs beautifully with the playful crunch of sprinkles.

Ingredients

• All-purpose flour: Provides structure without making these too cakey, measuring correctly is crucial here
• Baking powder: Just enough lift to give them that perfect tender crumb without being fluffy
• Salt: Balances the sweetness and brings out all the buttery flavors
• Unsalted butter: Melted creates those rich, fudgy edges everyone fights over
• Light brown sugar: The moisture content keeps them chewy and adds that subtle caramel depth
• Egg and egg yolk: The extra yolk is the secret to their dense, decadent texture
• Vanilla extract: Do not skimp here because this is the backbone flavor of the entire blondie
• White chocolate chips: Optional but they add these creamy pockets that melt into the batter
• Rainbow sprinkles: Use jimmies specifically because nonpareils will bleed and turn everything gray

Instructions

Preheat your oven:

Get it to 350 degrees and line an 8x8 pan with parchment letting the edges hang over for easy lifting later

Mix the dry ingredients:

Whisk flour, baking powder and salt in a medium bowl so everything is evenly distributed

Whisk the butter and sugar:

Stir melted butter and brown sugar until it looks glossy and smooth, about a minute

Add the wet ingredients:

Beat in the egg, extra yolk and vanilla until completely combined

Combine everything:

Gently fold the dry ingredients into the wet mixture with a spatula just until no flour streaks remain

Add the fun stuff:

Fold in white chocolate chips and most of the sprinkles but save that tablespoon for the top

Spread and bake:

Even the batter in your pan, scatter those reserved sprinkles on top and bake 23 to 26 minutes until edges are set

Cool completely:

Let them rest in the pan on a wire rack because cutting them warm will make them fall apart

Pin it

These became my go-to contribution for every friend birthday after someone brought them to game night and we all sat around picking out our favorite colored sprinkles first.

Getting The Perfect Texture

I learned that slightly underbaking is better than going even two minutes too long. The center should still have a tiny bit of wobble when you pull them out.

Making Them Your Own

My daughter asked to add crushed graham crackers once and now that is our campfire version. The possibilities for add-ins are basically endless.

Storage And Serving

These actually taste better on day two when the flavors have had time to meld together. Store them at room temperature in an airtight container for up to five days.

• Freeze individually wrapped squares for up to three months
• Serve slightly warmed with vanilla ice cream for dessert
• Package them in cellophane bags for adorable party favors

Pin it

Nothing beats pulling these from the oven and seeing all those colorful sprinkles peeking through that golden top.

Recipe Q&A

→ What type of sprinkles work best?

Use jimmies (the long, thin sprinkles) rather than nonpareils, which can bleed into the batter. Rainbow or pastel sprinkles both work beautifully for a spring look.

→ Can I make these ahead?

Yes, store in an airtight container at room temperature for up to 4 days. They also freeze well for up to 3 months if wrapped tightly.

→ Why brown sugar instead of white?

Brown sugar adds moisture and creates a richer, deeper flavor with caramel undertones that complements the buttery base perfectly.

→ How do I know when they're done?

The edges should be set and slightly golden, while the center may still look slightly underbaked. A toothpick should come out with moist crumbs, not wet batter.

→ Can I add other mix-ins?

Absolutely. White chocolate chips, chopped nuts, or even chocolate chips work well. Just keep total add-ins to about 1 cup to maintain the proper texture.