Name: Fireworks Blondies
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 1/2 cup unsalted butter, softened; 2 cups packed brown sugar; 2 large eggs; 1 teaspoon vanilla extract; 1/2 teaspoon salt; 1 teaspoon baking powder; 2 cups all-purpose flour; 2 cups red, white, and blue M&M's; 1/2 cup patriotic sprinkles

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Fireworks Blondies are soft, chewy dessert bars packed with colorful red, white, and blue M&M's and festive sprinkles. I love making these blondies for summer celebrations because they are simple to prepare, full of rich brown sugar flavor, and bright enough to become the centerpiece of any dessert table. Whether I serve them for the Fourth of July, Memorial Day, or a backyard barbecue, they always disappear quickly.

Fireworks Blondies

Ingredients

(Tip: You'll find the full list of ingredients and measurements in the recipe card below.)

½ cup unsalted butter, softened

2 cups packed brown sugar

2 large eggs

1 teaspoon vanilla extract

½ teaspoon salt

1 teaspoon baking powder

2 cups all-purpose flour

2 cups red, white, and blue M&M's

½ cup patriotic sprinkles

Directions

I preheat the oven to 350°F (175°C). I line a 9×13-inch baking pan with parchment paper or foil and lightly coat it with cooking spray.

I beat the softened butter and brown sugar together until the mixture becomes crumbly.

I add the eggs and vanilla extract, then mix until everything is smooth.

I stir in the salt and baking powder.

I gradually mix in the flour until a thick batter forms.

I gently fold the M&M's and patriotic sprinkles into the batter until evenly distributed.

I spread the batter evenly into the prepared baking pan. If needed, I lightly spray my hands with cooking spray to smooth the surface.

I sprinkle a few extra M&M's over the top for an even more colorful finish.

I bake the blondies for 22–25 minutes, just until the edges turn lightly golden. I avoid overbaking so they stay soft and chewy.

I let the blondies cool completely before slicing them into bars and serving.

Servings and Timing

Servings: 24 bars

Prep Time: 15 minutes

Cooking Time: 25 minutes

Total Time: 40 minutes

Calories: Approximately 148 kcal per serving

Variations

I swap the patriotic M&M's for seasonal colors to make these blondies suitable for Christmas, Halloween, Easter, or birthdays.

I add white chocolate chips for extra sweetness and a creamier texture.

I mix in chopped pecans or walnuts for a bit of crunch.

I replace the vanilla extract with almond extract for a subtle flavor twist.

I drizzle melted white chocolate over the cooled bars for a bakery-style finish.

Storage/Reheating

I store the blondies in an airtight container at room temperature for up to 5 days. If I want to keep them longer, I freeze them in a freezer-safe container for up to 3 months with parchment paper between the layers.

When I am ready to enjoy one, I let it thaw at room temperature or warm it in the microwave for about 10–15 seconds to make it soft and fresh again.

FAQs

Can I use regular M&M's instead of patriotic ones?

Yes. I can use any color or variety of M&M's depending on the occasion or personal preference.

How do I keep my blondies soft?

I make sure not to overbake them. I remove them from the oven as soon as the edges are lightly golden while the center still looks slightly soft.

Can I make these blondies ahead of time?

Yes. I often prepare them a day or two before serving because they stay soft and flavorful when stored in an airtight container.

Can I freeze Fireworks Blondies?

Yes. I wrap the bars individually or place layers between parchment paper before freezing them for up to 3 months.

Why are my blondies dry?

Dry blondies are usually the result of overbaking or adding too much flour. I measure the flour carefully and keep a close eye on the baking time.

Conclusion

I love making Fireworks Blondies because they combine rich, chewy texture with colorful candy and festive sprinkles in every bite. They are quick to prepare, easy to customize for any celebration, and perfect for feeding a crowd. Whenever I want a cheerful dessert that looks just as good as it tastes, these blondies are one of my favorite recipes to bake.

📖 Recipe:

Fireworks Blondies

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Author: Cheryl
Total Time: 40 minutes
Yield: 24 bars
Diet: Vegetarian

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Description

Fireworks Blondies are soft, chewy dessert bars packed with colorful red, white, and blue M&M's and festive sprinkles. They are easy to make, rich with brown sugar flavor, and perfect for summer celebrations and parties.

Instructions

Preheat the oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper or foil and lightly coat with cooking spray.
Beat the softened butter and brown sugar together until crumbly.
Add the eggs and vanilla extract, then mix until smooth.
Stir in the salt and baking powder.
Gradually mix in the flour until a thick batter forms.
Fold in the M&M's and patriotic sprinkles until evenly distributed.
Spread the batter evenly into the prepared pan, smoothing the top if needed.
Sprinkle a few extra M&M's over the top.
Bake for 22–25 minutes, or until the edges are lightly golden and the center is just set.
Cool completely before slicing into bars and serving.