These chewy and colorful blondies are packed with sweet white chocolate and crunchy, festive sprinkles. They’re a delightful treat to share at any celebration, with a fun texture and a burst of flavor in every bite.
These colorful blondies are studded with white chocolate and bright sprinkles, making them perfect for birthdays, holidays, or any time you want a sweet, celebratory treat.
Recipe Details
- Flavor Profile: Sweet, buttery, and vanilla-infused with bursts of white chocolate and a playful sprinkle crunch.
- Textures: Chewy centers with slightly crisp edges.
- Total Time: 50 minutes.
- Difficulty: Easy, perfect for beginner bakers.
What You’ll Need
These blondies feature simple ingredients, combining the richness of butter and sugar with the subtle tang of brown sugar and vanilla. Flour is the structural base, while baking powder provides a gentle lift. White chocolate chips add creamy sweetness, and festive sprinkles contribute both color and a delightful crunch.
Ingredient Notes
- Unsalted Butter – Using unsalted butter allows you to control the saltiness of the blondies. Make sure the butter is properly softened to incorporate smoothly with the sugar.
- Brown Sugar – This adds moisture and a subtle caramel flavor.
- Granulated Sugar – This provides sweetness and helps with the blondie’s structure.
- Eggs – Eggs bind the ingredients and contribute to the blondies’ richness. Use large eggs for the best results.
- Vanilla Extract – Pure vanilla extract enhances the overall flavor profile.
- All-Purpose Flour – All-purpose flour is the structural foundation for these blondies.
- Baking Powder – Just a touch of baking powder provides a gentle lift.
- White Chocolate Chips – These melt into the blondies, adding a creamy, sweet contrast.
- Sprinkles – Use your favorite sprinkles to add color and a festive touch.
Add-ins and Substitutions
- Chocolate Chips: Swap white chocolate for milk or dark chocolate chips for different flavor options.
- Nuts: Add in 1/2 cup of chopped nuts like pecans or walnuts for a textural variation.
- Extracts: Experiment with different extracts, like almond or butter extract, for extra flavor.

How to Make Festive Fireworks Blondies
- Preheat your oven to 350°F and prepare a square baking pan. Line an 8×8 inch square baking pan with parchment paper, leaving an overhang on two sides to easily lift out the baked blondies later.
- Cream the butter and sugars. In a large mixing bowl, cream together the softened unsalted butter, brown sugar, and granulated sugar until the mixture is light and fluffy. This can be done with a hand mixer or a stand mixer.
- Add the wet ingredients. Beat in the eggs one at a time, followed by the vanilla extract, until well combined.
- Combine dry and wet. In a separate bowl, whisk together the flour and baking powder. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
- Fold in the add-ins. Gently fold in the white chocolate chips and sprinkles until evenly distributed throughout the batter.
- Bake. Pour the batter into the prepared baking pan and spread it evenly. Bake in the preheated oven for 20–25 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with moist crumbs.
- Pro Tip: Don’t overbake. The blondies should still be slightly soft in the center when they come out of the oven.
- Cool and slice. Let the blondies cool completely in the pan before lifting them out using the parchment paper overhang. Once cooled, slice into squares and serve.
Recipe Tips
- Use room temperature ingredients for better incorporation and a more consistent batter.
- Don’t overmix the batter, as this can lead to tough blondies.
- Ensure your baking powder is fresh for the best rise.
- Let the blondies cool completely before slicing for clean cuts.
- Store cooled blondies in an airtight container for up to 3 days.
FAQs
- Can I use a different size baking pan?
Yes, you can. If you use a different size, adjust the baking time accordingly. A larger pan will require a shorter baking time, while a smaller pan will need a longer time. - How do I know when the blondies are done?
The edges should be golden brown, and a toothpick inserted into the center should come out with moist crumbs. - Can I freeze these blondies?
Yes, allow the blondies to cool completely. Wrap individually with plastic wrap and place them in a freezer-safe bag or container for up to 2 months. Thaw at room temperature before serving. - Why are my blondies flat?
Make sure your baking powder is fresh, and don’t skimp on the butter and sugar. Ensure you measure your ingredients correctly as well.
Serving Suggestions
- Serve warm with a scoop of vanilla ice cream.
- Pair with a glass of cold milk or a cup of coffee.
- Add a drizzle of melted white chocolate over the finished blondies for extra indulgence.
- Enjoy with fresh berries.
- Wrap individual blondies in cellophane bags tied with ribbon for a sweet gift.
Make This Recipe in Advance
You can make the blondie batter ahead of time and store it, covered, in the refrigerator for up to 24 hours before baking. You can also bake the blondies and store them in an airtight container at room temperature for up to 3 days or in the freezer for longer storage.
Festive Fireworks Blondies
- Total Time: 50 minutes
Description
These chewy and colorful blondies are packed with sweet white chocolate and crunchy, festive sprinkles. They’re a delightful treat to share at any celebration, with a fun texture and a burst of flavor in every bite.
Ingredients
½ cup (113g) unsalted butter
2 cups (400g) packed brown sugar
2 large eggs
1 teaspoon vanilla extract
½ teaspoon salt
1 teaspoon baking powder
2 cups (248g) all purpose flour
2 cups red white, and blue M&Ms
½ cup patriotic sprinkles
Instructions
Preheat the oven to 350F. Line a 9×13 pan with foil and spray with cooking spray.
In a mixer, combine butter and brown sugar until crumbly. Mix in eggs and vanilla until smooth. Add salt, baking powder, and then flour. Stir in M&Ms and sprinkles.
Spread the mixture in the prepared pan. The dough will be wet, so spray your hands with cooking spray to smooth it into an even layer. Add extra M&Ms on top for decoration.
Bake for 22-25 minutes, until golden. It’s better to underbake slightly.
Notes
Use room temperature ingredients for better incorporation and a more consistent batter.
Don’t overmix the batter, as this can lead to tough blondies.
Ensure your baking powder is fresh for the best rise.
Let the blondies cool completely before slicing for clean cuts.
Store cooled blondies in an airtight container for up to 3 days.
- Cook Time: 22-25 minutes
- Category: Dessert


