Cake Batter Blondies Recipe

Picture the happiest, most nostalgic treat ever—now imagine capturing that pure joy in a thick, chewy bar form. That’s exactly what these Cake Batter Blondies deliver! This one-bowl recipe is a ticket to sprinkle-filled bliss, brimming with golden vanilla flavor, sweet chunks of white chocolate, and that unmistakably festive cake batter vibe. Whether you’re whipping them up for a birthday surprise, a potluck, or just because you love baked goods that scream “celebration,” these blondies are here to brighten any day.

Ingredients You’ll Need

The magic behind these blondies is how everyday ingredients come together to create a bar that’s decadently rich, perfectly dense, and swirled with rainbows. Each component brings its own spark—just wait until you taste the harmony!

• 1 box Betty Crocker Golden Vanilla cake mix: Delivers classic cake batter flavor and a soft, tender crumb—shortcut bliss!
• 1/4 cup canola oil (or coconut/avocado oil): Keeps the bars moist and rich without overpowering the sweet vanilla notes.
• 1 large egg, beaten: Adds binding power and just the right amount of chew.
• 1/3 cup half-and-half or heavy whipping cream: Makes the batter velvety and gives extra luscious texture.
• 1/2 cup rainbow sprinkles: Brings the essential fun—the unmistakable look of Cake Batter Blondies.
• 1 cup white chocolate chips (about half an 11.5-oz bag): Sweet, creamy pockets that melt right into every bite.
• 1 tbsp. extra rainbow sprinkles: For topping—pretty and festive from the very first glance.

How to Make Cake Batter Blondies

Step 1: Prep Your Pan and Oven

Before you start, preheat your oven to 350°F so it’s ready to bake as soon as your batter comes together. Lightly grease an 8×12-inch or 9×9-inch baking dish—you can use nonstick spray or a thin swipe of oil. This little step means easy release and perfect bars every time.

Step 2: Mix the Dry Ingredients

In a large bowl, dump in your box of golden vanilla cake mix along with 1/2 cup of rainbow sprinkles. Stir these together so the sprinkles are evenly distributed, which helps prevent their colors from bleeding later and ensures rainbow goodness in every bite.

Step 3: Add Wet Ingredients

Crack a large egg into a separate bowl, beat it lightly, then pour it in with your dry mix. Add your preferred oil—canola, coconut, or avocado. Stir it up until everything looks a bit crumbly and evenly moistened. You’re setting the stage for that classic cake batter flavor!

Step 4: Stir in Cream and White Chocolate

Time for the magic touch: drizzle in your half-and-half (or heavy cream) and fold in those white chocolate chips. Mix until a thick, sticky batter forms. Don’t worry—it’s supposed to be dense! Just keep stirring until no dry spots remain.

Step 5: Bake to Perfection

Spoon the batter into your prepared dish, gently spreading it to the edges. Sprinkle the remaining tablespoon of rainbow sprinkles over the top for that signature confetti look. Slide the pan into your preheated oven and bake for 20 to 30 minutes—just until the edges are golden and a toothpick inserted in the center comes out clean or with only a few moist crumbs.

Step 6: Cool and Slice

The hardest part: letting the blondies cool completely in the pan. This helps them set up into neat bars. Once cool, grab a sharp knife and slice into squares or rectangles, depending on your mood (or how many people you’re sharing with!).

How to Serve Cake Batter Blondies

Garnishes

Dress up your Cake Batter Blondies with an extra flurry of rainbow sprinkles, a drizzle of white chocolate, or even a dusting of powdered sugar. For special occasions, a whipped cream rosette or a cherry on top never hurt anyone!

Side Dishes

Blondies are always a winner solo, but they absolutely shine next to a scoop of vanilla bean or strawberry ice cream. Try pairing them with fresh berries or a tall glass of milk for a truly nostalgic treat you’ll crave again and again.

Creative Ways to Present

For birthdays, tuck individual blondies into colorful cupcake liners or stack them tall as a showstopping centerpiece. Make blondie “ice cream sandwiches” by pressing scoops of softened ice cream between two bars. You can even cut them with cookie cutters for customized shapes and themes!

Make Ahead and Storage

Storing Leftovers

To keep your Cake Batter Blondies tasting fresh, store them in an airtight container at room temperature for up to 4 days. Their texture actually improves overnight as the flavors meld together—if you can resist eating them all at once!

Freezing

These blondies freeze like a dream. Wrap individual bars tightly in plastic wrap and place them in a freezer bag. They’ll keep beautifully for up to three months, ready to brighten any day you need a last-minute sweet fix.

Reheating

Missing that oven-fresh warmth? Pop a blondie in the microwave for 10–15 seconds for melty white chocolate and a gooey center, or warm a batch in a 300°F oven for about five minutes to revive their just-baked texture.

FAQs

Can I use a different cake mix flavor?

Absolutely! While golden vanilla gives Cake Batter Blondies their signature taste, feel free to substitute with strawberry, funfetti, or even chocolate cake mix for fun twists and new flavor profiles.

Are there alternatives to white chocolate chips?

Definitely! Try semi-sweet chips, butterscotch chips, or even chopped candy bars for a funky spin. Just stay close to the overall cup measurement for best results.

What keeps the blondies so moist?

The combination of oil and half-and-half (or heavy cream) is the secret. These ingredients keep the bars luxuriously moist and soft without making them greasy.

How do I know when they’re done baking?

Look for golden edges and a center that’s set but still a little soft. A toothpick inserted should come out clean or with just a few moist crumbs—don’t overbake, or you’ll lose that dreamy chew!

Can I double the recipe?

You sure can! Use a 9×13-inch pan and increase the baking time slightly, keeping a close eye to avoid overbaking. Perfect for parties or whenever you want more Cake Batter Blondies to go around.

Final Thoughts

If you’re craving a colorful, crowd-pleasing treat that’s as fun to make as it is to eat, you simply have to try these Cake Batter Blondies. Each bite is a confetti-studded celebration that just begs to be shared—though no one says you have to!

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