Celebrate life’s little moments with these Birthday Cake Blondies! Sweet, buttery, and loaded with sprinkles, no cake mix needed.
These Birthday Cake Blondies are soft, chewy dessert bars packed with sweet vanilla flavor and colorful sprinkles, capturing all the fun of classic birthday cake in an easy-to-make treat. With a buttery blondie base and a tender, fudgy texture, they’re festive enough for celebrations yet simple enough for everyday baking.
For more fun birthday recipes you have to check out my Funfetti Cookies, Yellow Cake, and Funfetti Cupcakes.
Table of Contents
Why We Love Funfetti Blondies
- Birthday Cake Blondies taste just like funfetti cake, but in a convenient bar form.
- This cake recipe requires no cake mix, ensuring a homemade touch.
- These Funfetti Blondies are versatile, great for parties, snacks, or dessert.
Recipe Ingredients
- White Chocolate: Provides a sweet, creamy taste and smooth texture.
- Granulated Sugar: Contributes sweetness and helps achieve a tender, slightly crispy crust on top.
- Vanilla Extract: Adds warmth and depth to the blondies.
See the recipe card for full information on ingredients and quantities.
How to Make Birthday Cake Blondies
Step 1: Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius). Line an 8×8″ baking pan with parchment paper or foil, lightly grease, and set aside.
Step 2: In a medium-sized microwave-safe bowl (or glass measuring cup), add the butter. Heat until partially melted, then add the white chocolate. Microwave on medium power in 15-second intervals, stirring until melted and smooth. Pour into a large mixing bowl or the bowl of a stand mixer.
Step 3: Add the sugars, eggs, and vanilla, and mix until combined.
Step 4: In a separate mixing bowl, whisk together the flour, baking powder, and salt. Gradually add to the wet ingredients, mixing just until combined. Fold in sprinkles (and extra chunks of white chocolate if desired) by hand.
Step 5: Pour into the prepared pan and place in the oven to bake for 25-30 minutes or until the top is set and golden brown. Remove from the oven and allow to cool in the pan for 45 minutes before removing and slicing.
Expert Tips
- Gentle Mixing: When combining the dry ingredients with the wet, mix gently and just until combined. Overmixing can result in dense blondies.
- Even Spreading: Use a spatula to spread the batter evenly in the pan. This ensures uniform baking and prevents uneven texture.
FAQs
Insert a toothpick into the center. If it comes out clean or with a few moist crumbs, the blondies are ready.
High-quality white chocolate chips or bars melt smoothly and provide a rich flavor to the blondies.
Storage Info
To STORE Birthday Cake Blondies, place them in an airtight container at room temperature for up to 5 days. For longer storage, FREEZE the blondies by wrapping them individually in plastic wrap and placing them in a freezer-safe bag; they can be frozen for up to 3 months.
To REHEAT, microwave frozen blondies for 20-30 seconds or warm them in a 350 degrees F (175 degrees C) oven for 5-10 minutes until heated through.
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Birthday Cake Blondies Recipe
Ingredients
- 1/2 cup (1 stick) unsalted butter
- 5 oz white chocolate - chopped*
- 1/2 cup granulated sugar
- 1/4 cup brown sugar
- 2 large eggs
- 2 tsp vanilla extract
- 1 cup + 2 Tbsp all-purpose flour
- 1/4 teaspoon baking powder
- 1/2 tsp salt
- 1/2 cup sprinkles - (anything but nonpareils)**
- 1 oz white chocolate - chopped (optional)
Instructions
- Preheat oven to 350 degrees Fahrenheit (175 degrees Celsius). Line an 8×8" baking pan with parchment paper or foil, lightly grease, and set aside.
- In a medium-sized microwave-safe bowl (or glass measuring cup), add the butter. Heat until partially melted, then add the white chocolate. Microwave on medium power in 15-second intervals, stirring until melted and smooth. Pour into a large mixing bowl or the bowl of a stand mixer.
- Add the sugars, eggs, and vanilla, and mix until combined.
- In a separate mixing bowl, whisk together the flour, baking powder, and salt. Gradually add to the wet ingredients, mixing just until combined. Fold in sprinkles (and extra chunks of white chocolate if desired) by hand.
- Pour into the prepared pan and place in the oven to bake for 25-30 minutes or until the top is set and golden brown. Remove from the oven and allow to cool in the pan for 45 minutes before removing and slicing.
So fun and colorful! I love how they melt in your mouth.
I baked these following all the instructions but they came out incredibly bland 🙁 I don’t understand why
I’m sorry they didn’t turn out for you. Having high quality vanilla extract and white chocolate should make a difference.