Fireworks Blondies are the perfect treat for any celebration, especially during the 4th of July! These chewy bars are not only easy to make but also allow for creative additions like colorful M&Ms and sprinkles. Their vibrant appearance and delightful taste make them a hit at parties, potlucks, or simply as a sweet snack at home. With a soft texture and rich flavor, Fireworks Blondies will quickly become your go-to cookie bar recipe.

Jump to:
- Why You’ll Love This Recipe
- Tools and Preparation
- Essential Tools and Equipment
- Importance of Each Tool
- Ingredients
- For the Blondies
- How to Make Fireworks Blondies
- Step 1: Preheat the Oven
- Step 2: Mix the Batter
- Step 3: Add Dry Ingredients
- Step 4: Bake Your Blondies
- How to Serve Fireworks Blondies
- With Ice Cream
- Drizzled with Chocolate Sauce
- Topped with Whipped Cream
- Accompanied by Fresh Berries
- With Coffee or Tea
- As Party Favors
- How to Perfect Fireworks Blondies
- Best Side Dishes for Fireworks Blondies
- Common Mistakes to Avoid
- Storage & Reheating Instructions
- Refrigerator Storage
- Freezing Fireworks Blondies
- Reheating Fireworks Blondies
- Frequently Asked Questions
- How do I know when my Fireworks Blondies are done?
- Can I customize my Fireworks Blondies?
- What if I don’t have M&Ms?
- How long do Fireworks Blondies last?
- Final Thoughts
- 📖 Recipe Card
Why You’ll Love This Recipe
- Quick and Easy: This blondie recipe requires minimal effort and can be ready in just 45 minutes.
- Deliciously Soft: The combination of butter and brown sugar creates a soft, chewy texture that melts in your mouth.
- Customizable: You can add various mix-ins to suit your taste, making them perfect for every occasion.
- Festive Appeal: Bright red, white, and blue M&Ms make these blondies ideal for patriotic celebrations.
- Great for Sharing: With 24 servings, these blondies are perfect for gatherings or as a sweet treat for the family.
Tools and Preparation
To create the best Fireworks Blondies, having the right tools can make all the difference. Here’s what you’ll need:
Essential Tools and Equipment
- Stand mixer or hand mixer
- 9×13 inch baking pan
- Aluminum foil
- Cooking spray
- Mixing bowls
Importance of Each Tool
- Stand mixer or hand mixer: Makes mixing butter and sugar effortless, ensuring a smooth batter.
- 9×13 inch baking pan: Ideal size for even cooking and achieving that perfect blondie thickness.
- Cooking spray: Prevents sticking, making it easier to remove your delicious blondies from the pan.
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. Line a 9×13 inch pan with aluminum foil and spray it well with cooking spray to prevent sticking.
Step 2: Mix the Batter
In a mixing bowl, combine the unsalted butter and packed brown sugar. Use your stand mixer or hand mixer until crumbly. Then add in the large eggs and vanilla extract, mixing until smooth.
Step 3: Add Dry Ingredients
Once mixed smoothly, incorporate the salt, baking powder, and finally fold in the all-purpose flour. Stir in the colorful M&Ms and patriotic sprinkles.
Step 4: Bake Your Blondies
Spread the mixture evenly into your prepared baking pan. Since it’s wet dough, spray your hands with cooking spray to help smooth it out. Optionally, top with extra M&Ms for decoration. Bake for about 22-25 minutes until golden on top. Remember, it’s better to err on the side of under-baking as they will continue to cook while cooling.
Enjoy your Fireworks Blondies at any fun occasion!
How to Serve Fireworks Blondies
Fireworks Blondies are a delightful treat that can be served in various ways to enhance their appeal. Whether you’re celebrating a holiday or just indulging in a sweet craving, these blondies can suit any occasion.
With Ice Cream
- A scoop of vanilla or chocolate ice cream pairs perfectly with the warm, chewy texture of the blondies for a comforting dessert.
Drizzled with Chocolate Sauce
- Adding a drizzle of rich chocolate sauce elevates the flavor and creates an indulgent presentation.
Topped with Whipped Cream
- Light and airy whipped cream adds a delicious touch that complements the sweetness of the blondies.
Accompanied by Fresh Berries
- Serve alongside fresh strawberries, blueberries, or raspberries for a refreshing contrast to the chewy bars.
With Coffee or Tea
- Enjoy these blondies with your favorite coffee or tea for a delightful afternoon snack or dessert.
As Party Favors
- Cut them into smaller squares and package them in festive bags for guests to take home after a celebration.

How to Perfect Fireworks Blondies
Creating perfect Fireworks Blondies involves paying attention to some key tips. With these suggestions, you’ll achieve that ideal chewy texture every time.
- Use fresh ingredients – Make sure your baking powder is not expired and that your butter is at room temperature for optimal mixing.
- Don’t overmix – Mix just until combined; overmixing can lead to dense blondies rather than light and fluffy ones.
- Check for doneness – Since they continue to cook after being removed from the oven, err on the side of under-baking for that perfect chewy center.
- Cool completely before slicing – Allowing them to cool fully will help set their structure, making cutting easier and cleaner.
- Customize with add-ins – Feel free to mix in nuts or different candies for personalized flavors and textures.
- Store properly – Keep blondies in an airtight container at room temperature to maintain their freshness and softness.
Best Side Dishes for Fireworks Blondies
To make your dessert spread even more delightful, consider pairing these Fireworks Blondies with complementary side dishes. Here are some great options:
- Fruit Salad – A colorful mix of seasonal fruits adds freshness and balances out the sweetness of the blondies.
- Cheese Platter – A selection of cheeses can provide a savory contrast that pairs nicely with the sweet treats.
- Nutty Granola – This crunchy addition offers texture and flavor diversity when enjoyed alongside the soft blondies.
- Chocolate Dip Pretzels – The salty crunch of pretzels dipped in chocolate can enhance the overall snacking experience.
- Sweet Potato Fries – For something unique, serve crispy sweet potato fries as a fun side dish that balances sweetness and saltiness.
- Mini Cheesecakes – Individual cheesecakes add richness and variety while still keeping within the dessert theme.
- Popsicles – Refreshing fruit popsicles make for a playful addition, especially during warm months.
- Coffee Cake Muffins – These muffins provide another layer of flavor without overshadowing the main attraction—your Fireworks Blondies!
Common Mistakes to Avoid
Baking Fireworks Blondies can be a delightful experience, but common mistakes can lead to less-than-perfect results. Here are some pitfalls to avoid.
- Using cold ingredients – Always use room temperature butter and eggs for a smoother batter and better texture.
- Overmixing the batter – Mixing too much can lead to tough blondies. Mix until just combined for the best result.
- Not checking for doneness – These blondies should be slightly underbaked. Use a toothpick; it should come out with a few moist crumbs.
- Skipping the parchment paper – Lining your baking pan ensures easy removal and clean edges. Don’t skip this step!
- Ignoring the cooling time – Allow the blondies to cool in the pan before cutting. This helps them set properly.
Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Place parchment paper between layers if stacking to prevent sticking.
Freezing Fireworks Blondies
- Wrap individual bars tightly in plastic wrap and place them in a freezer bag.
- They can be frozen for up to 3 months.
Reheating Fireworks Blondies
- Oven – Preheat to 350°F, place blondies on a baking sheet, cover with foil, and heat for about 10 minutes.
- Microwave – Heat one blondie at a time for 10-15 seconds until warm.
- Stovetop – Place a blondie in a skillet over low heat, cover, and warm for 5 minutes.
Frequently Asked Questions
Here are some common questions about Fireworks Blondies that might help you get the most out of this recipe.
How do I know when my Fireworks Blondies are done?
The edges should be golden brown while the center looks slightly underbaked. A toothpick inserted should come out with a few moist crumbs.
Can I customize my Fireworks Blondies?
Absolutely! You can add nuts, chocolate chunks, or swap out M&Ms for your favorite candies. Get creative!
What if I don’t have M&Ms?
You can substitute M&Ms with any colorful candy or even chocolate chips for a delicious alternative.
How long do Fireworks Blondies last?
When stored properly in an airtight container, these blondies will last up to 5 days at room temperature or longer if refrigerated.
Final Thoughts
Fireworks Blondies are not only easy to make but also incredibly versatile. Their soft, chewy texture paired with colorful additions makes them perfect for celebrations or just as a fun treat at home. Experiment with your favorite mix-ins to make them uniquely yours!
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Fireworks Blondies
- Total Time: 40 minutes
- Yield: Serves 24 1x
Description
Fireworks Blondies are the ultimate treat for any celebration, especially during the 4th of July! These chewy and colorful cookie bars are easy to whip up, making them a fantastic choice for potlucks, parties, or a sweet indulgence at home. With their vibrant mix of M&Ms and sprinkles, these blondies not only look festive but also boast a delightful flavor that will leave everyone wanting more. Soft and rich in taste, this simple recipe will quickly become your go-to dessert for any occasion.
Ingredients
- ½ cup unsalted butter
- 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&Ms
- ½ cup patriotic sprinkles
Instructions
- Preheat your oven to 350°F (175°C) and line a 9×13 inch pan with aluminum foil, spraying it with cooking spray.
- In a mixing bowl, cream together the unsalted butter and packed brown sugar until crumbly. Add eggs and vanilla extract, mixing until smooth.
- Stir in salt, baking powder, and then fold in all-purpose flour. Finally, mix in M&Ms and sprinkles.
- Spread the batter evenly in the prepared pan and bake for about 22–25 minutes until golden on top. Let cool before slicing.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 blondie (45g)
- Calories: 190
- Sugar: 16g
- Sodium: 80mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 3g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 30mg