Fireworks Blondies

Name: Fireworks Blondies
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
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

Recipe By:

Alexandra

Posted:

June 16, 2025

Updated:

June 16, 2025

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Fireworks Blondies are the ultimate treat for any celebration, especially during the 4th of July! This EASY blondie recipe is the BEST EVER COOKIE BAR that will impress your family and friends. With their soft texture and vibrant colors from M&Ms and sprinkles, these blondies are not only perfect for festive occasions but also great for everyday snacking. Their versatility allows you to customize them with different mix-ins, making them a go-to dessert all year long!

Why You’ll Love This Recipe

Quick and Easy: You can whip up these blondies in just 15 minutes of prep time!
Deliciously Soft: The combination of butter and brown sugar creates a rich, chewy texture that everyone loves.
Customizable: Add your favorite mix-ins like nuts or chocolate chips to make them uniquely yours.
Festive Appeal: The red, white, and blue M&Ms make these blondies perfect for 4th of July celebrations.
Perfect for Sharing: With 24 bars in one batch, they’re ideal for parties or potlucks.

Tools and Preparation

Before diving into the recipe, gather your tools to ensure a smooth baking experience.

Essential Tools and Equipment

Stand mixer or hand mixer
9×13” baking pan
Parchment paper or aluminum foil
Cooking spray
Mixing bowls

Importance of Each Tool

Stand mixer or hand mixer: Makes mixing ingredients easier and faster, ensuring a smooth batter.
Baking pan: A 9×13” pan provides the perfect size for even cooking and easy cutting.
Cooking spray: Prevents the blondies from sticking to the pan, making cleanup a breeze.

Ingredients

Fireworks Blondies – this EASY blondie recipe is the BEST EVER COOKIE BAR! It’s so soft and perfect with any additions, but especially with 4th of July M&Ms and sprinkles!

For the Blondies

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

How to Make Fireworks Blondies

Step 1: Preheat the Oven

Preheat your oven to 350°F (175°C). Prepare a 9×13” baking pan by lining it with foil and spraying it generously with cooking spray.

Step 2: Mix Wet Ingredients

In a mixing bowl, combine unsalted butter and packed brown sugar. Using a stand mixer or hand mixer, beat until creamy. Then add in the large eggs and vanilla extract, mixing until smooth.

Step 3: Combine Dry Ingredients

Add salt, baking powder, and then gradually mix in all-purpose flour. Stir until just combined.

Step 4: Add Colorful Mix-Ins

Gently fold in the red white, and blue M&Ms along with the patriotic sprinkles. Ensure they are evenly distributed throughout the batter.

Step 5: Spread into Pan

Spread the mixture evenly into the prepared baking pan. Since it’s a wet mixture, you may want to spray your hands with cooking spray to help smooth it out. If desired, top with extra M&Ms for decoration.

Step 6: Bake

Bake in the preheated oven for approximately 22-25 minutes. Keep an eye on them; you want them golden but slightly underbaked for that chewy texture. They will continue to cook while cooling down.

Enjoy your delicious Fireworks Blondies at your next gathering!

How to Serve Fireworks Blondies

Fireworks Blondies are a delightful treat that can be enjoyed in various ways. Whether you’re celebrating a holiday or simply satisfying your sweet tooth, these blondies are versatile and fun to serve.

Individual Bars

Cut the blondies into squares and serve them on colorful plates for a festive touch at any gathering.

À La Mode

Top each blondie with a scoop of vanilla ice cream for a deliciously creamy contrast to the chewy texture.

Drizzled with Chocolate

Melt some chocolate and drizzle it over the blondies for an extra layer of flavor and elegance.

Whipped Cream Topping

Add a dollop of freshly whipped cream on top for an airy, light addition that complements the sweetness.

Pair with Fresh Berries

Serve alongside fresh strawberries or blueberries to add a fruity freshness that balances the richness of the blondies.

How to Perfect Fireworks Blondies

Perfecting Fireworks Blondies is all about mastering a few key techniques. By following these simple tips, you’ll ensure your blondies come out soft, chewy, and utterly delicious every time.

Use Room Temperature Ingredients: Make sure your butter and eggs are at room temperature. This helps create a smooth batter and ensures even baking.
Don’t Overmix: After adding the flour, mix just until combined. Overmixing can lead to tough blondies.
Check for Doneness: Bake until just golden on top. A toothpick inserted should come out with a few moist crumbs; this means they’re perfectly soft.
Let Cool Before Cutting: Allow the blondies to cool completely before slicing. This helps them set up nicely and makes cutting easier.

Best Side Dishes for Fireworks Blondies

While Fireworks Blondies shine as the main dessert, pairing them with complementary side dishes can enhance your dessert table. Here are some great options to consider:

Vanilla Ice Cream: A classic pairing that enhances the flavors of the blondies while providing a cool contrast.
Fruit Salad: A refreshing mix of seasonal fruits can add brightness to your dessert spread.
Chocolate Dipped Strawberries: These sweet treats offer an elegant touch and are perfect for dipping alongside your blondies.
Caramel Sauce: Drizzling warm caramel over your blondies takes them to another level of indulgence.
Cheesecake Bites: Mini cheesecake bites provide a creamy texture that contrasts nicely with the chewy blondies.
Nutty Trail Mix: A crunchy nut mix adds texture and balances out the sweetness of the blondies.

Common Mistakes to Avoid

Making Fireworks Blondies can be a breeze, but there are a few common pitfalls to watch out for.

Incorrect oven temperature: Always preheat your oven to 350°F. Baking at the wrong temperature can lead to either undercooked or burnt blondies.
Not measuring ingredients accurately: Use a kitchen scale or measuring cups to ensure you have the right amounts. Too much flour or sugar can affect the texture and flavor of your blondies.
Overmixing the batter: Mix just until combined. Overmixing can lead to dense blondies instead of the soft, chewy texture we love.
Skipping the cooling step: Allow your blondies to cool in the pan before cutting them. This helps them set properly and makes slicing easier.
Using expired ingredients: Check the freshness of your baking powder and other ingredients. Expired items can affect how well your blondies rise and taste.

Storage & Reheating Instructions

Refrigerator Storage

Store Fireworks Blondies in an airtight container.
They will stay fresh for about 5-7 days in the refrigerator.
For best results, place parchment paper between layers to prevent sticking.

Freezing Fireworks Blondies

Wrap individual bars tightly in plastic wrap.
Place them in a freezer-safe bag or container.
They can be frozen for up to 3 months.

Reheating Fireworks Blondies

Oven: Preheat to 350°F and warm for about 10-15 minutes until heated through.
Microwave: Heat one bar for 15-20 seconds on high; check if warm enough.
Stovetop: Place in a non-stick skillet over low heat, cover, and warm for about 5 minutes.

Frequently Asked Questions

What are Fireworks Blondies?

Fireworks Blondies are delicious cookie bars that feature a soft, chewy texture packed with festive red, white, and blue M&Ms and sprinkles. They are perfect for celebrations like the Fourth of July.

Can I customize my Fireworks Blondies?

Absolutely! You can swap M&Ms with chocolate chips, nuts, or dried fruits. Get creative with other festive sprinkles too!

How do I know when my Fireworks Blondies are done baking?

Look for a slight golden color around the edges. A toothpick inserted should come out with a few moist crumbs but not wet batter.

Can I make these blondies ahead of time?

Yes! You can prepare them a day or two in advance and store them in an airtight container. They taste great even after being stored!

Final Thoughts

Fireworks Blondies are not only easy to make but also incredibly versatile. Their soft texture pairs wonderfully with various mix-ins, making them perfect for any occasion. Try experimenting with your favorite flavors and toppings! You won’t be disappointed!