Marshmallow Brownies
These Marshmallow Brownies are the ultimate treat for chocolate lovers! With their rich, fudgy texture and delightful marshmallow fluff swirled on top, they make an irresistible dessert. Perfect for birthdays, parties, or just a cozy night in, these brownies bring joy to any occasion. Whether you’re a baking novice or a seasoned pro, this recipe is easy to follow and guarantees mouth-watering results.
Why You’ll Love This Recipe
- Super Fudgy Texture: These brownies are incredibly moist and rich, thanks to the combination of chocolate chips and marshmallow fluff.
- Easy to Make: With simple ingredients and straightforward steps, you can whip up these treats in no time!
- Versatile Dessert: Perfect for any gathering or as a sweet snack at home. They also pair wonderfully with ice cream.
- Crowd-Pleaser: Everyone loves brownies! These marshmallow brownies will impress family and friends alike.
- Decadent Flavor: The blend of semi-sweet chocolate chips and fluffy marshmallow creates a fantastic taste sensation.
Tools and Preparation
Before diving into making these delicious marshmallow brownies, gather your tools. Having everything ready will make the process smoother and more enjoyable.
Essential Tools and Equipment
- 9X9-inch baking pan
- Nonstick spray
- Parchment paper
- Medium bowl
- Mixer with whisk attachment
- Rubber spatula
- Butter knife
Importance of Each Tool
- Baking Pan: A 9X9-inch pan is perfect for creating thick brownies that bake evenly.
- Mixer with Whisk Attachment: Using a mixer saves time and ensures that your batter is well combined for optimal texture.
- Rubber Spatula: Ideal for folding in chocolate chips without overmixing the batter.
Ingredients
These marshmallow brownies are super fudgy chocolate brownie with chocolate chips. It has marshmallow fluff swirled on top.
- 2 cups White granulated sugar
- 3 Large eggs
- 1 Egg yolk
- 1/2 cup Unsalted butter (melted)
- 2 tsp Pure vanilla extract
- 1/2 cup Oil (canola or vegetable)
- 3/4 cup All-purpose flour
- 1 cup Unsweetened cocoa powder (Use Dutch process cocoa powder)
- 1 1/2 TBSP Cornstarch
- 1/2 tsp Salt
- 1 cup Semi-sweet chocolate chips
- 1 cup Marshmallow creme
How to Make Marshmallow Brownies
Step 1: Preheat the Oven
Preheat the oven to 325°F. Spray a 9X9-inch baking pan with nonstick spray. Line the bottom and two sides of the pan with parchment paper and spray it again for easy removal.
Step 2: Mix Dry Ingredients
In a medium bowl, sift together the flour, cocoa powder, cornstarch, and salt. Set this mixture aside for later use.
Step 3: Combine Wet Ingredients
Using a mixer with a whisk attachment, beat the sugar, eggs, and egg yolk on high speed for about five minutes until it becomes pale in color. While mixing, melt the butter in the microwave and allow it to cool slightly.
Step 4: Incorporate Everything Together
Add the oil, melted butter, and vanilla extract into the egg mixture. Mix on low speed until combined. Gradually add the dry ingredients into this mixture while mixing on low until just combined. Fold in the semi-sweet chocolate chips using a rubber spatula.
Step 5: Prepare for Baking
Pour the brownie batter into your prepared baking pan. Melt the marshmallow fluff in the microwave for 20–30 seconds until soft. Use a teaspoon to dollop the melted marshmallow fluff on top of the brownie batter. Lightly swirl it through with a butter knife to create a marbled effect.
Step 6: Bake Your Brownies
Bake in your preheated oven for 45–55 minutes. To check if they’re done, insert a toothpick into the center; it should come out slightly wet but not with raw batter. If necessary, bake for an additional five minutes.
Step 7: Cool Down Before Serving
Allow your brownies to cool completely on a cooling rack before cutting them into squares and serving them up!
Enjoy these delectable marshmallow brownies that everyone will love!
How to Serve Marshmallow Brownies
These marshmallow brownies are not only delicious but also versatile when it comes to serving. You can enhance their flavor and presentation with a few simple ideas.
Pair with Ice Cream
- Vanilla Ice Cream: The creamy texture complements the fudgy brownies.
- Chocolate Ice Cream: For a double chocolate treat, serve with rich chocolate ice cream.
- Mint Chocolate Chip: This refreshing flavor adds a cool contrast to the warm brownies.
Drizzle with Sauces
- Hot Fudge Sauce: A warm drizzle over the brownies takes them to another level of indulgence.
- Caramel Sauce: Sweet caramel adds a lovely contrast to the rich chocolate.
- Raspberry Sauce: A tart sauce brightens up the flavors beautifully.
Add Fresh Fruits
- Sliced Strawberries: Fresh berries add a pop of color and freshness.
- Bananas: Sliced bananas provide a deliciously sweet addition.
- Cherries: Top with cherries for a classic dessert look and taste.
Garnish with Nuts
- Chopped Pecans: Their crunchiness contrasts nicely with the soft brownie texture.
- Walnuts: A classic pairing that enhances the flavor profile of chocolate.

How to Perfect Marshmallow Brownies
For the best results, follow these simple tips that will ensure your marshmallow brownies turn out perfectly every time.
- Use high-quality cocoa powder: This will enhance the chocolate flavor in your brownies significantly.
- Beat eggs well: Whisking eggs until pale and fluffy incorporates air, making your brownies lighter.
- Don’t overmix: Stir just until combined when adding dry ingredients; this keeps them fudgy and moist.
- Check the baking time carefully: Since ovens vary, start checking for doneness at the minimum time suggested.
- Let them cool completely: Allowing brownies to cool fully makes cutting them easier and neater.
Best Side Dishes for Marshmallow Brownies
Serving marshmallow brownies alongside delectable side dishes can elevate your dessert experience even further.
- Whipped Cream: Light and airy, whipped cream adds a delightful finish to your brownies.
- Chocolate Covered Strawberries: These sweet treats create a romantic touch when served together.
- Coffee: A warm cup enhances the flavors of chocolate beautifully.
- Fruit Salad: A refreshing combination of fruits balances out the richness of the brownies.
- Cheesecake Bites: Mini cheesecake bites offer a delicious contrast in texture and flavor.
- Milkshakes: Pairing with a thick milkshake creates a fun and indulgent dessert experience.
- Peanut Butter Cups: For peanut butter lovers, these add an extra layer of flavor that works well!
Common Mistakes to Avoid
When making your Marshmallow Brownies, it’s easy to run into some common pitfalls. Here are a few mistakes to watch out for.
- Using the wrong pan size – Always ensure you use a 9X9-inch pan. A different size can alter the baking time and texture.
- Overmixing the batter – Mix just until combined to keep your brownies fudgy. Overmixing can lead to tougher brownies.
- Ignoring the cooling time – Allow your brownies to cool completely before cutting. This helps them set properly and makes for cleaner slices.
- Not checking doneness – Use a toothpick to check for doneness. If it comes out with wet batter, they need more time in the oven.
- Skipping the parchment paper – Line your baking pan with parchment paper for easy removal. Skipping this step can result in stuck brownies.

Storage & Reheating Instructions
Refrigerator Storage
- Store your Marshmallow Brownies in an airtight container.
- They will stay fresh for up to one week in the fridge.
Freezing Marshmallow Brownies
- Cut cooled brownies into squares before freezing for easy serving.
- Wrap each brownie individually in plastic wrap, then place them in a freezer-safe container. They can last up to three months.
Reheating Marshmallow Brownies
- Oven – Preheat to 350°F. Place brownies on a baking sheet and heat for about 10 minutes.
- Microwave – Heat individual brownies for 15-20 seconds until warm.
- Stovetop – Place brownies in a skillet over low heat with a lid for a few minutes, ensuring they do not burn.
Frequently Asked Questions
Here are some common questions about Marshmallow Brownies that might help you understand this delightful treat better.
Can I use different types of chocolate chips?
Yes! You can use dark chocolate or white chocolate chips if you prefer those flavors.
How do I know when my Marshmallow Brownies are done?
Insert a toothpick into the center; it should come out slightly wet but not covered in batter.
Can I add nuts to my Marshmallow Brownies?
Absolutely! Chopped nuts like walnuts or pecans add a nice crunch and flavor contrast.
What if I can’t find marshmallow fluff?
You can make your own by whipping up egg whites and sugar or use mini marshmallows instead.
Final Thoughts
These Marshmallow Brownies are truly irresistible with their fudgy texture and gooey marshmallow topping. They are perfect for any occasion and can be customized with various add-ins like nuts or different types of chocolate chips. Give this recipe a try, and enjoy the delightful combination of flavors!

Marshmallow Brownies
- Total Time: 1 hour 5 minutes
- Yield: Serves approximately 16 brownies 1x
Description
Indulge in these delectable Marshmallow Brownies, a heavenly fusion of rich chocolate and fluffy marshmallow. These fudgy treats are perfect for any occasion, whether it’s a birthday celebration or a cozy night at home. The combination of semi-sweet chocolate chips and swirls of marshmallow fluff creates an irresistible dessert that will delight chocolate lovers everywhere. Easy to make and even easier to enjoy, this recipe guarantees mouthwatering results that will impress family and friends alike.
Ingredients
- 2 cups white granulated sugar
- 3 large eggs
- 1/2 cup unsalted butter (melted)
- 1/2 cup oil (canola or vegetable)
- 3/4 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow crème
Instructions
- Preheat your oven to 325°F and prepare a 9X9-inch baking pan with nonstick spray and parchment paper.
- In a medium bowl, sift together the flour, cocoa powder, cornstarch, and salt.
- Beat the sugar, eggs, and egg yolk on high speed until pale. Add oil, melted butter, and vanilla extract.
- Gradually mix in the dry ingredients until just combined. Fold in chocolate chips.
- Pour batter into the pan and dollop melted marshmallow fluff on top; swirl lightly with a knife.
- Bake for 45-55 minutes or until a toothpick comes out slightly wet but not with raw batter.
- Cool completely before cutting into squares.
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (60g)
- Calories: 250
- Sugar: 20g
- Sodium: 150mg
- Fat: 12g
- Saturated Fat: 6g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 34g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 45mg