Marshmallow Brownies
These Marshmallow Brownies are a delightful treat that combines rich chocolate flavors with a fluffy marshmallow topping. Perfect for parties, family gatherings, or just a cozy night in, these brownies offer a unique twist on the classic dessert. The fudgy texture and swirls of marshmallow fluff make them irresistible and a favorite among both kids and adults alike.
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, this recipe is perfect for bakers of all levels.
- Decadent Flavor: The combination of chocolate chips and marshmallow fluff creates an indulgent taste you’ll crave.
- Versatile Treat: Ideal for any occasion—birthdays, holidays, or just because!
- Fudgy Texture: These brownies are luxuriously fudgy, ensuring each bite is rich and satisfying.
- Quick Prep Time: You can whip up these brownies in just 15 minutes of prep time!
Tools and Preparation
Before diving into the recipe, gather your tools to ensure a smooth baking experience.
Essential Tools and Equipment
- Mixer with whisk attachment
- 9X9-inch baking pan
- Parchment paper
- Rubber spatula
- Butter knife
Importance of Each Tool
- Mixer with whisk attachment: Helps achieve the perfect airy texture when beating eggs and sugar.
- 9X9-inch baking pan: Ensures even baking for your brownies, allowing them to rise correctly.
- Rubber spatula: Ideal for folding in chocolate chips without deflating the batter.
Ingredients
These marshmallow brownies are super fudgy chocolate brownies with chocolate chips. It has marshmallow fluff swirled on top.
For the Brownie Batter
- 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
For the Marshmallow Topping
- 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 again.
Step 2: Prepare Dry Ingredients
In a medium bowl, sift together the flour, cocoa powder, cornstarch, and salt. Set aside.
Step 3: Beat Sugar and Eggs
Using a mixer with a whisk attachment, beat together the sugar, eggs, and egg yolk on high speed for about 5 minutes until pale in color. While mixing, melt the butter in the microwave and allow it to cool.
Step 4: Combine Wet Ingredients
Add oil, melted butter, and vanilla extract to the egg mixture. Mix on low speed until combined.
Step 5: Add Dry Ingredients
Gradually incorporate the dry ingredients into the wet mixture on low speed until just combined. Gently fold in chocolate chips using a rubber spatula.
Step 6: Add Marshmallow Fluff
Pour brownie batter into the prepared pan. Melt marshmallow fluff in the microwave for 20-30 seconds until soft. Use a teaspoon to dollop marshmallow fluff over the brownie batter. Lightly swirl it using a butter knife.
Step 7: Bake
Bake for 45-55 minutes. The brownies are ready when you insert a toothpick and it comes out slightly wet but not gooey. If too much batter sticks to it, bake for an additional 5 minutes.
Step 8: Cool Before Serving
Allow brownies to cool completely on a cooling rack before cutting into squares and serving.
Enjoy your deliciously fudgy Marshmallow Brownies, perfect for any sweet craving!
How to Serve Marshmallow Brownies
Marshmallow brownies are a delightful treat that can be enjoyed in various ways. Whether you’re hosting a party or simply indulging at home, these serving suggestions will elevate your dessert experience.
A La Mode
- Serve warm brownies with a scoop of vanilla ice cream on top for a classic combination. The heat from the brownies melts the ice cream, creating a creamy delight.
With Whipped Cream
- Top your marshmallow brownies with fresh whipped cream for an added layer of richness. This fluffy topping complements the dense brownie texture beautifully.
Drizzled with Chocolate Sauce
- Enhance the chocolate flavor by drizzling warm chocolate sauce over each brownie. It adds an extra indulgent touch that chocolate lovers will appreciate.
Paired with Fresh Berries
- Serve brownies alongside fresh strawberries or raspberries for a refreshing contrast. The tartness of the berries balances the sweetness of the marshmallows and chocolate.
As Part of a Dessert Platter
- Cut the brownies into bite-sized pieces and include them on a dessert platter with other treats like cookies and mini cheesecakes. This makes for an inviting display at gatherings.
With Nuts or Sprinkles
- Sprinkle chopped nuts or colorful sprinkles on top before serving for added crunch and visual appeal. This simple addition can make your dessert more festive.

How to Perfect Marshmallow Brownies
To achieve the perfect marshmallow brownies, consider these helpful tips to enhance your baking skills.
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Use quality ingredients – Opt for high-quality cocoa powder and chocolate chips to ensure rich flavor in your brownies.
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Don’t overmix – Mix just until combined when adding dry ingredients to prevent tough brownies; they should remain fudgy.
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Adjust baking time – Keep an eye on your brownies towards the end of baking; every oven is different, and slight adjustments may be needed.
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Cool completely before slicing – Allowing the brownies to cool ensures they set properly, making it easier to cut neat squares without crumbling.
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Experiment with toppings – Feel free to add nuts, caramel drizzle, or even sea salt for a gourmet twist on this classic recipe.
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Store properly – Keep leftover brownies in an airtight container at room temperature for up to three days or refrigerate for longer freshness.
Best Side Dishes for Marshmallow Brownies
Pairing side dishes with marshmallow brownies can create a well-rounded dessert experience. Here are some fantastic options:
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Fresh Fruit Salad – A mix of seasonal fruits adds brightness and balances out the richness of the brownies.
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Chocolate Chip Cookies – Classic cookies complement the brownie texture and offer another delicious treat option.
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Ice Cream Sundae Bar – Set up an ice cream sundae station where guests can customize their desserts with various toppings.
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Milkshake – A thick chocolate or vanilla milkshake serves as a delightful drink pairing, enhancing the overall sweetness of your dessert table.
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Cheesecake Bites – Mini cheesecake bites provide a creamy contrast that pairs well with fudgy brownies.
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Coffee or Espresso – A warm cup of coffee enhances chocolate flavors and offers a lovely contrast to sweet desserts.
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Caramel Sauce Dip – Serve caramel sauce alongside for dipping brownie pieces; it adds another layer of flavor that’s hard to resist.
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Mini Pastries – Offer an assortment of mini pastries like éclairs or tarts to create an elegant dessert spread that satisfies various tastes.
Common Mistakes to Avoid
When making marshmallow brownies, it’s easy to make some common mistakes that can affect the final result. Here are a few to keep in mind.
- Skipping the Parchment Paper: Not lining your baking pan can lead to sticking. Always line with parchment paper for easy removal.
- Overmixing the Batter: Mixing too long can make brownies tough. Mix just until combined for a fudgy texture.
- Not Measuring Ingredients Accurately: Using incorrect measurements can ruin the recipe. Use a kitchen scale or measuring cups for precision.
- Ignoring Oven Temperature: Baking at the wrong temperature can affect doneness. Always preheat your oven to 325°F before baking.
- Cutting Brownies Too Soon: Cutting into warm brownies makes them fall apart. Let them cool completely before slicing.

Storage & Reheating Instructions
Refrigerator Storage
- Store marshmallow brownies in an airtight container.
- They can last up to 5 days in the refrigerator.
Freezing Marshmallow Brownies
- Wrap individual brownies in plastic wrap before placing them in a freezer-safe bag.
- They will stay fresh for up to 3 months in the freezer.
Reheating Marshmallow Brownies
- Oven: Preheat to 350°F, then warm brownies for about 10 minutes.
- Microwave: Heat a brownie for 10-15 seconds until warm.
- Stovetop: Place a brownie in a skillet over low heat, cover, and warm for about 5 minutes.
Frequently Asked Questions
Here are some frequently asked questions about marshmallow brownies that may help clarify any uncertainties.
How do I achieve the perfect texture in my Marshmallow Brownies?
To get that perfect fudgy texture, avoid overmixing your batter and ensure your ingredients are well-measured.
Can I use different types of chocolate chips in Marshmallow Brownies?
Absolutely! You can use dark chocolate chips or white chocolate chips based on your preference for flavor.
What is the best way to store leftover Marshmallow Brownies?
Store them in an airtight container in the refrigerator for up to five days, or freeze them for longer storage.
Can I customize my Marshmallow Brownies?
Yes! Consider adding nuts or other toppings like crushed cookies or caramel swirls for added flavor and texture.
What if I don’t have marshmallow fluff?
You can substitute with mini marshmallows or make homemade marshmallow cream if you don’t have fluff on hand.
Final Thoughts
These marshmallow brownies are not only delicious but also versatile. You can customize them with various add-ins to suit your taste. Whether you enjoy them as a cozy dessert after dinner or share them at gatherings, they are sure to please everyone. Give this recipe a try, and enjoy every bite!

Marshmallow Brownies
- Total Time: 1 hour 5 minutes
- Yield: Makes about 16 brownies 1x
Description
Indulge in the rich, chocolatey goodness of Marshmallow Brownies, a delightful twist on the classic dessert. These fudgy brownies are layered with a fluffy marshmallow topping that melts in your mouth, making them perfect for any occasion—from birthdays to cozy nights at home. With an easy-to-follow recipe and simple ingredients, these brownies are a hit among both kids and adults. Their decadent flavor and luxurious texture promise to satisfy any sweet tooth. Get ready to impress your family and friends with this irresistible treat!
Ingredients
- 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 (Dutch process recommended)
- 1 1/2 TBSP cornstarch
- 1/2 tsp salt
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow fluff
Instructions
- Preheat the oven to 325°F and prepare a 9X9-inch baking pan with nonstick spray and parchment paper.
- In a bowl, sift together flour, cocoa powder, cornstarch, and salt; set aside.
- In a mixer, beat sugar, eggs, and egg yolk on high until pale (about 5 minutes).
- Mix in melted butter, oil, and vanilla extract.
- Gradually add dry ingredients until just combined; fold in chocolate chips.
- Pour batter into the pan; dollop melted marshmallow fluff on top and swirl gently.
- Bake for 45-55 minutes until a toothpick comes out slightly wet but not gooey.
- 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 (approximately 50g)
- Calories: 210
- Sugar: 22g
- Sodium: 100mg
- Fat: 9g
- Saturated Fat: 4g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 30g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 35mg