If you’re searching for a dessert that’s festive, chewy, and bursting with birthday cake nostalgia, Funfetti Birthday Cake Blondies (No Cake Mix) are your perfect pick! These blondies are sprinkled with rainbow magic and loaded up with creamy white chocolate chips—all without the need for boxed cake mix. The result? Soft, thick, celebratory bars that bring smiles to every slice. Whether you’re making treats for a birthday, potluck, or just because, these blondies deliver irresistible flavor in every vibrant bite.

Funfetti Birthday Cake Blondies (No Cake Mix) Recipe - Recipe Image

Ingredients You’ll Need

You’ll be amazed by how a few pantry staples can create such an unforgettable treat. Each ingredient has a role to play in achieving the perfect soft, chewy texture and that classic birthday cake flavor in your Funfetti Birthday Cake Blondies (No Cake Mix).

Unsalted Butter (1/2 cup, melted): Adds rich flavor and gives these blondies their buttery, melt-in-your-mouth texture.
Light Brown Sugar (1 cup, packed): Brings chewiness and a subtle caramel undertone that pairs beautifully with the white chocolate and sprinkles.
Large Egg (1): Holds everything together and gives structure for that perfect blondie bite.
Vanilla Extract (1 teaspoon): Infuses the bars with warmth and classic cake flavor.
Almond Extract (1/4 teaspoon, optional): Adds a delicate, nostalgic bakery-flavor note that takes the blondies over the top.
All-Purpose Flour (1 cup): The foundation of the blondies, providing just the right amount of sturdiness without being dense.
Baking Powder (1/2 teaspoon): Offers a gentle lift for a soft, slightly cakey crumb.
Salt (1/4 teaspoon): Balances all the sweet flavors and enhances the other ingredients.
Rainbow Sprinkles (1/3 cup): The heart of Funfetti Birthday Cake Blondies (No Cake Mix)—they add pops of color and bring pure birthday fun!
White Chocolate Chips (1/3 cup): Creamy pockets of sweetness that echo classic birthday cake vibes.

How to Make Funfetti Birthday Cake Blondies (No Cake Mix)

Step 1: Prepare Your Pan and Oven

Start by preheating your oven to 350°F (177°C). Line an 8×8-inch baking pan with parchment paper or give it a light coat of nonstick spray. This not only ensures easy removal but also helps the blondies keep those crisp, buttery edges that everyone loves.

Step 2: Whisk Together Wet Ingredients

In a medium bowl, combine your melted butter and packed brown sugar. Whisk until the mixture is smooth and glossy—this base is what gives Funfetti Birthday Cake Blondies (No Cake Mix) their signature chewy goodness. Next, add the egg, vanilla extract, and almond extract if using; whisk again until everything’s fully blended and creamy.

Step 3: Add Dry Ingredients

Sprinkle in your flour, baking powder, and salt. Gently stir with a spatula or wooden spoon, mixing just until the flour disappears. Resist the urge to overmix; this keeps the blondies soft and luscious, never tough!

Step 4: Fold in the Fun

Now’s the moment for magic—gently fold in the rainbow sprinkles and white chocolate chips. Try to use “jimmies” style sprinkles, as they hold up best and won’t bleed into your blondie batter. Every stir in this step means more color and joy in every bite!

Step 5: Bake and Cool

Spread the colorful batter evenly in your prepared pan. Bake for 22 to 26 minutes: the edges should look set and golden, while the center keeps a few moist crumbs clinging to your testing toothpick. For super gooey blondies, check them on the earlier side. Let them cool completely before slicing—the hardest part is waiting!

How to Serve Funfetti Birthday Cake Blondies (No Cake Mix)

Garnishes

For extra flair, top your Funfetti Birthday Cake Blondies (No Cake Mix) with a light dusting of powdered sugar, a few extra rainbow sprinkles, or even a drizzle of melted white chocolate. Each of these little garnishes amps up both the festivity and the sweetness.

Side Dishes

These blondies shine on their own, but if you want to really celebrate, serve them with a scoop of vanilla ice cream, a swirl of whipped cream, or fresh berries for a playful balance. Paired with a frosty glass of milk or mug of coffee, they turn dessert into a mini party.

Creative Ways to Present

Try slicing your Funfetti Birthday Cake Blondies (No Cake Mix) into bite-sized cubes and stacking them in colorful mini cupcake liners for a birthday dessert board, or wrap individual blondies in festive parchment for the ultimate lunchbox surprise. You can even skewer them and serve with dipping sauces for a party-ready treat platter!

Make Ahead and Storage

Storing Leftovers

Store any leftover blondies in an airtight container at room temperature for up to 3 days. They’ll stay wonderfully chewy and flavorful, but be warned—they have a way of disappearing fast!

Freezing

Funfetti Birthday Cake Blondies (No Cake Mix) freeze beautifully. Once cooled, cut them into bars, layer with parchment paper, and stash in a zip-top freezer bag or airtight container. They’ll keep for up to three months—perfect for impromptu celebrations!

Reheating

For that freshly-baked warmth, microwave individual blondie squares for about 10 seconds. This revives their gooey texture and brings out the aromas, making them taste bakery-fresh all over again.

FAQs

Can I double this recipe for a bigger crowd?

Absolutely! Simply double all the ingredients and spread the batter into a 9×13-inch pan. Just remember to extend the bake time a bit—check for doneness at 25 to 30 minutes, and watch for the same signs as the original recipe.

What type Dessert

For bright, streak-free blondies, use “jimmies” (the longer, rod-shaped confetti sprinkles). Nonpareils or sanding sugar tend to bleed color into the batter and can impact the texture.

Can I use dark brown sugar instead of light brown?

Yes! Dark brown sugar will add a richer, slightly deeper molasses flavor, which makes the Funfetti Birthday Cake Blondies (No Cake Mix) even more caramel-like. Just note the color will be a bit darker.

Do I have to include almond extract?

Nope—the almond extract is totally optional. It lends a subtle, classic bakery vibe, but if you’re not a fan or don’t have it, your blondies will still taste absolutely delicious with just vanilla.

How do I know when the blondies are done?

Look for edges that are set and lightly golden, while the center should still look a tad underdone. A toothpick inserted in the middle should come out with moist (but not wet) crumbs. They’ll continue to set as they cool.

Final Thoughts

Give these Funfetti Birthday Cake Blondies (No Cake Mix) a try and watch every bite bring out the birthday spirit—no occasion necessary! With their cheery sprinkles and cake-batter flavor, they’re sure to make any day brighter and sweeter. Happy baking!

Funfetti Birthday Cake Blondies (No Cake Mix) Recipe

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4.9 from 29 reviews

Author: Emma
Total Time: 35 minutes
Yield: 9–12 blondies 1x
Diet: Vegetarian

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Description

These Funfetti Birthday Cake Blondies are a delightful twist on traditional blondies, bursting with colorful sprinkles and white chocolate chips. Easy to make and perfect for any celebration!

Ingredients

Scale

Blondies:

1/2 cup unsalted butter (melted)
1 cup light brown sugar (packed)
1 large egg
1 teaspoon vanilla extract
1/4 teaspoon almond extract (optional)
1 cup all-purpose flour
1/2 teaspoon baking powder
1/4 teaspoon salt
1/3 cup rainbow sprinkles
1/3 cup white chocolate chips

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Instructions

Preheat the oven: Preheat the oven to 350°F (177°C). Line an 8×8-inch baking pan with parchment paper or lightly grease it.
Mix wet ingredients: In a medium bowl, whisk together melted butter and brown sugar until smooth. Add egg, vanilla, and almond extract (if using), and whisk until combined.
Add dry ingredients: Stir in flour, baking powder, and salt until just mixed—do not overmix.
Fold in extras: Gently fold in rainbow sprinkles and white chocolate chips.
Bake: Spread the batter evenly in the prepared pan. Bake for 22–26 minutes until edges are set and a toothpick comes out mostly clean.
Cool and serve: Cool completely in the pan before slicing into squares.

Notes

Use jimmies-style sprinkles to prevent bleeding into the batter.
For extra gooey blondies, remove from the oven closer to the 22-minute mark.
You can double the recipe for a 9×13-inch pan—just adjust the bake time slightly.

Prep Time: 10 minutes
Cook Time: 25 minutes
Category: Dessert
Method: Baking
Cuisine: American