Birthday Cake Blondies
If you love the chewy texture of classic blondies and the authentic birthday cake flavor of funfetti desserts, these Birthday Cake Blondies are the perfect treat. Packed with white chocolate chips, colorful rainbow sprinkles, and the sweet crunch of Golden Oreos, this recipe is an easy way to make a party-ready dessert without a lot of time. Whether you’re planning a birthday party, looking for a fun bake sale item, or just want a delicious recipe to cure your sweet tooth, these bars hit the mark. Made with simple ingredients and baked until perfectly golden brown, they’re a perfect dessert for any special occasion.
They should be lightly golden brown on top with set edges. A toothpick should come out mostly clean, with a few moist crumbs for that chewy texture.
Absolutely! Add chopped Golden Oreos, M&Ms, or even swap sprinkles for seasonal colors next time.
Blondies are a vanilla version of a brownie – sweet, chewy dessert bars without cocoa powder.
Unsalted butter – Works fine; just add ¼ tsp extra salt.
Golden Oreos – Optional, but they add crunch and flavor. Regular Oreos or birthday cake cookies work too.
White chocolate chips – Swap with semi-sweet or milk chocolate chips if you’re not a fan of white chocolate.
Vanilla extract – Try almond extract or clear vanilla extract for stronger birthday cake flavor.
Cake mix variation – For a shortcut, fold in 1 cup of white cake mix or yellow cake mix with the flour for a cake batter blondies twist.
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Ingredient Notes
- Salted Butter – Adds richness and moisture for a fudgy texture.
- Granulated Sugar – Balances the sweetness and helps create chewy centers.
- Light Brown Sugar – Provides deeper flavor and keeps the blondies extra soft.
- Large Eggs – Bind the batter and add structure.
- Vanilla Extract – For that classic vanilla flavor; use clear imitation vanilla extract for a true birthday cake taste.
- All-Purpose Flour – The base of the batter, providing structure to the blondies.
- Baking Powder – Ensures a little lift without making the bars cakey.
- Salt – Balances sweetness and enhances flavor.
- Cornstarch – Helps create the perfect texture with chewy centers.
- Rainbow Sprinkles – Fun sprinkles add color and crunch for that iconic birthday treat look.
- White Chocolate Chips – Sweet, creamy bursts throughout the blondies.
Birthday Cake Blondies
- Preheat oven to 350°F. Line a 9×13 glass baking dish with parchment paper and set aside. Cream together butter, sugar, and brown sugar for 3-4 minutes.
- Beat in eggs and vanilla extract.
- In a separate bowl, combine flour, baking powder, salt, and cornstarch. Add the flour mixture to the butter mixture and mix just until combined.
- Fold in ¾ cup of sprinkles and ¾ cup of white chocolate chips.
- Spread the batter into the prepared baking dish.
- Top batter with additional sprinkles and white chocolate chips (about ⅛ cup of each).
- Bake blondies for about 35 minutes or until a toothpick inserted in the center comes out clean.
- Allow blondies to cool completely before cutting into squares.
Birthday Cake Blondies
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Ingredients
- 1 cup salted butter softened
- ¾ cup granulated sugar
- 1 ¼ cup light brown sugar
- 3 large eggs
- 2 teaspoons vanilla extract
- 2 ¾ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon salt
- 2 teaspoons cornstarch
- ¾ + ⅛ cup sprinkles
- ¾ + ⅛ cup white chocolate chips
Instructions
- Preheat oven to 350°F. Line a 9×13 glass baking dish with parchment paper and set aside.
- Cream together butter, sugar, and brown sugar for 3-4 minutes.
- Beat in eggs and vanilla extract.
- In a separate bowl, combine flour, baking powder, salt, and cornstarch. Add the flour mixture to the butter mixture and mix just until combined.
- Fold in ¾ cup of sprinkles and ¾ cup of white chocolate chips.
- Spread the batter into the prepared baking dish.
- Top batter with additional sprinkles and white chocolate chips (about ⅛ cup of each).
- Bake blondies for about 35 minutes or until a toothpick inserted in the center comes out clean.
- Allow blondies to cool completely before cutting into squares.
Video
Nutrition
Nutritional Disclaimer: Family Fresh Meals is not a dietician or nutritionist, and any nutritional information shared is only an estimate. We recommend running the ingredients through an online nutritional calculator if you need to verify any information.
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