If you’re looking for a treat that brings all the joy and celebration of a birthday party into one irresistible bar, then you’re going to adore this Birthday Cake Blondies Recipe. Imagine rich, buttery blondies packed with bursts of colorful sprinkles and pockets of creamy white chocolate, creating a dessert that’s as fun to eat as it is to look at. These blondies strike the perfect balance of cakey and chewy, with a sweet vanilla flavor that feels like a celebration in every bite. Whether you’re baking for a special occasion or just want to brighten up an ordinary day, this recipe turns simple ingredients into something truly magical.
Ingredients You’ll Need
This Birthday Cake Blondies Recipe relies on a handful of straightforward ingredients that come together beautifully to create a soft, flavorful base loaded with joyful pops of color and texture. Each component plays a role in delivering that perfect balance of moistness, sweetness, and fun.
- Salted butter, 1 cup softened: Adds richness and moisture, giving the blondies their tender crumb.
- Granulated sugar, ¾ cup: Provides sweetness and helps create a slightly crisp top.
- Light brown sugar, 1 ¼ cup: Introduces a subtle caramel note and enhances chewiness.
- Large eggs, 3: Bind the ingredients while adding structure and richness.
- Vanilla extract, 2 teaspoons: Boosts flavor and infuses the batter with that classic birthday cake aroma.
- All-purpose flour, 2 ¾ cups: The foundation that gives blondies their cakey texture.
- Baking powder, 1 teaspoon: Helps the blondies rise to a light, fluffy consistency.
- Salt, ½ teaspoon: Balances sweetness and enhances all the flavors.
- Cornstarch, 2 teaspoons: Ensures tenderness by softening the structure of the blondies.
- Sprinkles, ¾ + ⅛ cup: For that unmistakable birthday party vibe and bursts of color throughout.
- White chocolate chips, ¾ + ⅛ cup: Bring creamy sweetness that melts into every bite.
How to Make Birthday Cake Blondies Recipe
Step 1: Prepare Your Baking Dish
Start by preheating your oven to 350°F to ensure it’s hot and ready when the batter is mixed. Line a 9×13 glass baking dish with parchment paper, which makes removing the blondies easier and prevents sticking. Setting this foundation is key to a hassle-free baking experience.
Step 2: Cream Butter and Sugars
Using softened butter, beat together the butter, granulated sugar, and light brown sugar for about 3 to 4 minutes. This step is crucial because properly creamed butter and sugar create air pockets that help give the blondies a lovely light texture and a mildly crispy top crust.
Step 3: Add Eggs and Vanilla
Next, beat in the eggs one at a time followed by the vanilla extract. The eggs enrich the batter and bind everything, while the vanilla adds that unmistakable warmth and flavor that screams birthday cake.
Step 4: Mix Dry Ingredients
In a separate bowl, whisk together the all-purpose flour, baking powder, salt, and cornstarch. This dry mix ensures your blondies will be tender yet hold their shape perfectly—kind of like a soft hug in every bite.
Step 5: Combine Wet and Dry Mixtures
Slowly add the dry ingredients to the butter mixture, mixing just until combined. Overmixing here can toughen the blondies, so stop as soon as the flour disappears. You want a batter that’s thick and smooth.
Step 6: Fold in Sprinkles and White Chocolate Chips
Stir in ¾ cup of sprinkles and ¾ cup of white chocolate chips gently. These add delightful bursts of color and creamy sweetness that make every square perfectly festive and fun.
Step 7: Spread Batter and Add Toppings
Spread the batter evenly into your prepared baking dish. For an extra special touch, sprinkle the remaining ⅛ cup each of sprinkles and white chocolate chips on top—this will give the blondies a colorful, photogenic finish.
Step 8: Bake the Blondies
Bake for about 35 minutes or until a toothpick inserted in the center comes out clean. The smell of vanilla and melted white chocolate filling your kitchen is your clue that these are almost ready to enjoy.
Step 9: Cool and Cut
Let the blondies cool completely in the pan before slicing them into 16 squares. Cooling ensures they set up beautifully and hold together when you cut into those perfect bars.
How to Serve Birthday Cake Blondies Recipe
Garnishes
While the sprinkles and white chocolate chips baked right in already provide a festive touch, you can add a drizzle of colorful icing or a dusting of powdered sugar for an extra pop. Fresh berries or edible glitter are fun options too if you’re celebrating a special occasion.
Side Dishes
These blondies pair wonderfully with a scoop of vanilla ice cream, a dollop of whipped cream, or a simple cup of coffee or milk. The creamy additives complement the rich, sweet flavors and make for a truly indulgent treat.
Creative Ways to Present
Consider serving these Birthday Cake Blondies Recipe bars on a decorative platter surrounded by fresh flowers or birthday candles for a party spread. Cutting them into bite-sized pieces for a dessert board or wrapping individual bars in colorful parchment makes sharing even easier.
Make Ahead and Storage
Storing Leftovers
Store any leftover blondies in an airtight container at room temperature for up to 4 days. This keeps them soft and fresh, ready for an anytime indulgence.
Freezing
If you want to keep them longer, wrap the cooled blondies tightly in plastic wrap and place them in a freezer-safe bag or container. They freeze beautifully for up to 3 months, making them perfect to bake ahead for last-minute celebrations.
Reheating
To enjoy frozen blondies, thaw at room temperature and warm slightly in the microwave or oven for just a few seconds to bring back that freshly baked feel and melty white chocolate goodness.
FAQs
Can I use unsalted butter instead of salted?
Absolutely! Just add a pinch more salt to the dry ingredients to balance the flavors and ensure that signature birthday cake flavor shines through perfectly.
Do the sprinkles fade when baked?
Some color may fade slightly during baking, but the sprinkles still add that cheerful touch and sweetness that are essential to this Birthday Cake Blondies Recipe.
What’s the best way to cut these blondies?
Wait until they’re completely cooled, then use a sharp, clean knife for neat squares. Wiping the knife clean between cuts helps keep edges tidy and pretty.
Can I substitute the white chocolate chips with something else?
Yes! Milk chocolate chips, butterscotch chips, or even chunks of your favorite chocolate bar work wonderfully and give a delicious twist to this classic.
Are these blondies cakey or fudgy?
They’re softly cakey with a bit of chew, thanks to the baking powder and cornstarch. This texture makes them light, tender, and incredibly easy to enjoy in every bite.
Final Thoughts
This Birthday Cake Blondies Recipe is such a cheerful and comforting treat that pops with both flavor and festive spirit. Whether you’re baking for a birthday, a get-together, or simply to treat yourself, these blondies never fail to put a smile on your face. Dive into the batter, enjoy the baking process, and prepare to be dazzled by just how special a simple blondie can feel with a bit of birthday magic inside.
Print
Birthday Cake Blondies Recipe
- Prep Time: 20 minutes
- Cook Time: 35 minutes
- Total Time: 55 minutes
- Yield: 16 blondies
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
Celebrate any occasion with these delightful Birthday Cake Blondies! Soft, buttery blondies packed with colorful sprinkles and creamy white chocolate chips make for a festive treat that’s easy to bake and perfect for sharing.
Ingredients
Wet Ingredients
- 1 cup salted butter (softened)
- ¾ cup granulated sugar
- 1 ¼ cup light brown sugar
- 3 large eggs
- 2 teaspoons vanilla extract
Dry Ingredients
- 2 ¾ cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon salt
- 2 teaspoons cornstarch
Add-ins and Toppings
- ¾ cup + ⅛ cup sprinkles
- ¾ cup + ⅛ cup white chocolate chips
Instructions
- Preheat and prepare pan: Preheat your oven to 350°F (175°C). Line a 9×13-inch glass baking dish with parchment paper to prevent sticking and set it aside.
- Cream butter and sugars: In a large mixing bowl, cream together the softened salted butter, granulated sugar, and light brown sugar using a mixer for 3-4 minutes until the mixture is light and fluffy.
- Add eggs and vanilla: Beat in the three large eggs and 2 teaspoons of vanilla extract to the creamed mixture until thoroughly combined.
- Combine dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking powder, salt, and cornstarch to evenly distribute the leavening agents and seasoning.
- Mix dry into wet: Gradually add the dry ingredients to the wet mixture, mixing just until combined to avoid overworking the batter and ensure tender blondies.
- Fold in sprinkles and chips: Gently fold in ¾ cup of sprinkles and ¾ cup of white chocolate chips to the batter, distributing them evenly.
- Spread batter in pan: Transfer the batter into the prepared baking dish and spread it out evenly with a spatula.
- Add topping: Sprinkle the remaining ⅛ cup of sprinkles and ⅛ cup of white chocolate chips on top of the batter for an extra festive touch.
- Bake: Bake the blondies in the preheated oven for approximately 35 minutes, or until a toothpick inserted into the center comes out clean, indicating they are fully baked.
- Cool and serve: Allow the blondies to cool completely in the pan before removing and cutting into 16 squares for serving. This helps them set and makes cutting easier.
Notes
- Make sure the butter is fully softened to cream properly with the sugars.
- Do not overmix the batter after adding the dry ingredients to keep the blondies tender.
- You can substitute the white chocolate chips with regular chocolate chips or butterscotch chips if desired.
- The sprinkles add festive color and texture; use good quality ones that won’t bleed colors.
- Allow the blondies to cool completely before cutting to ensure clean squares.
- Store leftovers in an airtight container at room temperature for up to 3 days.
