Marshmallow Brownies
These Marshmallow Brownies are a delightful treat that combines the richness of chocolate with the lightness of marshmallow fluff. Perfect for any occasion, these brownies are sure to impress your friends and family with their fudgy texture and sweet toppings. Whether you’re hosting a party or simply craving something sweet, this recipe will become a favorite in your dessert repertoire.
Why You’ll Love This Recipe
- Irresistible Flavor: The combination of rich chocolate and sweet marshmallow creates a delightful taste explosion.
- Easy to Make: With simple steps and common ingredients, anyone can whip up these brownies in no time.
- Versatile Treat: Serve them warm with ice cream or enjoy them as is; they fit any dessert setting perfectly.
- Perfectly Fudgy: These brownies maintain a gooey texture that melts in your mouth, satisfying any chocolate lover’s cravings.
- Customizable Toppings: Add nuts or extra chocolate chips for an even richer experience tailored to your taste.
Tools and Preparation
Before diving into baking, it’s essential to have the right tools on hand. These tools will ensure your Marshmallow Brownies come out perfectly every time.
Essential Tools and Equipment
- Nonstick baking spray
- 9X9-inch baking pan
- Parchment paper
- Mixing bowls
- Electric mixer with whisk attachment
- Rubber spatula
- Microwave-safe bowl
Importance of Each Tool
- Nonstick baking spray: Prevents the brownies from sticking to the pan, making clean-up easy.
- Electric mixer: Ensures that the sugar and eggs are whipped to perfection, making your brownies light and airy.
- Rubber spatula: Perfect for folding in ingredients without deflating the batter.
Ingredients
These marshmallow brownies are super fudgy chocolate brownie with chocolate chips. It has marshmallow fluff swirled on top.
For the Brownie Base
- 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 Swirl
- 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 for easy removal later.
Step 2: Prepare Dry Ingredients
In a medium bowl, sift together:
3/4 cup All-purpose flour
1 cup Unsweetened cocoa powder
1 1/2 TBSP Cornstarch
Add in:
1/2 tsp Salt
Set this mixture aside.
Step 3: Mix Wet Ingredients
Using an electric mixer with a whisk attachment, beat together:
2 cups White granulated sugar
3 Large eggs
1 Egg yolk
Mix on high speed for about 5 minutes until it becomes pale in color. While mixing, melt:
1/2 cup Unsalted butter (in microwave)
Let it cool before adding it into the mixture along with:
2 tsp Pure vanilla extract
1/2 cup Oil (canola or vegetable)
Mix on low until combined.
Step 4: Combine Dry and Wet Mixtures
Slowly add in the dry ingredients to the wet mixture. Mix on low until just combined. Pour in:
1 cup Semi-sweet chocolate chips
Use a rubber spatula to gently fold them into the batter.
Step 5: Swirl in Marshmallow Fluff
Pour the brownie batter into the prepared pan. In a microwave-safe bowl, melt:
1 cup Marshmallow creme
Heat for about 20-30 seconds until soft. Use a teaspoon to dollop this marshmallow fluff over the brownie batter and gently swirl it using a butter knife.
Step 6: Bake Your Brownies
Bake the brownies for about 45-55 minutes. They are done when you insert a toothpick, and it comes out slightly wet but not covered in batter. If too much batter sticks, bake for an additional 5 minutes.
Step 7: Cool and Serve
Allow brownies to cool completely on a cooling rack before cutting them into squares and serving.
Enjoy these deliciously fudgy Marshmallow Brownies, perfect for any dessert occasion!
How to Serve Marshmallow Brownies
Marshmallow brownies are a delightful treat that can be served in various ways. These fudgy brownies, topped with swirls of marshmallow fluff, are perfect for both casual gatherings and special occasions.
With Ice Cream
- Vanilla Ice Cream: Pair warm marshmallow brownies with a scoop of creamy vanilla ice cream for a classic combination.
- Chocolate Ice Cream: For chocolate lovers, serve these brownies with rich chocolate ice cream to enhance the fudgy flavor.
Topped with Whipped Cream
- Homemade Whipped Cream: Add a dollop of freshly whipped cream on top for added creaminess and a touch of elegance.
- Flavored Whipped Cream: Experiment with flavors like vanilla or peppermint to give an unexpected twist to your dessert.
Drizzled with Sauce
- Chocolate Sauce: Drizzle warm chocolate sauce over the brownies to create an indulgent dessert experience.
- Caramel Sauce: A drizzle of caramel adds sweetness and a chewy texture that complements the brownies perfectly.
With Fresh Fruit
- Berries: Serve with fresh strawberries or raspberries for a burst of tartness that balances the sweetness.
- Bananas: Slices of ripe banana on top can add a delightful flavor and texture contrast.
As Brownie Sundaes
- Layered Treats: Create brownie sundaes by layering crumbs, marshmallow fluff, ice cream, and toppings in individual cups for fun presentations.
At Parties
- Dessert Platter: Cut into bite-sized pieces and arrange on a platter with other desserts for an appealing dessert table option.

How to Perfect Marshmallow Brownies
To achieve the best marshmallow brownies, follow these simple tips. Each step ensures your brownies turn out fudgy and delicious every time.
- Use high-quality cocoa powder: Choosing Dutch process cocoa powder enhances the rich chocolate flavor in your brownies.
- Don’t overmix: Mix just until combined when adding dry ingredients to avoid tough brownies. They should remain moist and fudgy.
- Check doneness carefully: Bake until a toothpick comes out slightly wet; this keeps the center gooey and delicious.
- Cool completely before cutting: Allowing the brownies to cool ensures clean cuts and helps maintain their fudgy texture.
- Experiment with mix-ins: Try adding nuts or different types of chocolate chips for added flavor and texture variations.
- Store properly: Keep leftovers in an airtight container at room temperature to maintain freshness.
Best Side Dishes for Marshmallow Brownies
Marshmallow brownies can be complemented with various side dishes that enhance the overall dessert experience. Here are some delicious suggestions:
- Fresh Fruit Salad: A light fruit salad provides a refreshing contrast to the rich flavors of the brownies.
- Chocolate Fondue: Set up a chocolate fondue station where guests can dip fruit or pretzels alongside their brownie.
- Milkshake: A thick milkshake pairs well as it balances the sweetness while adding a creamy texture.
- Coffee or Espresso: Serving coffee or espresso on the side enhances the chocolate flavors in the brownies.
- Cheese Plate: A selection of cheeses can provide savory notes that complement sweet desserts beautifully.
- Nutty Granola: Crunchy granola adds texture and is perfect for those who enjoy some crunch alongside their soft treats.
- Pudding Cups: Offer small cups of chocolate pudding as an additional creamy dessert option alongside your brownies.
Common Mistakes to Avoid
Making marshmallow brownies can be fun, but it’s easy to make mistakes. Here are some common errors and how to avoid them.
- Overmixing the Batter: Mixing too much can lead to tough brownies. Mix until ingredients are just combined for a fudgier texture.
- Skipping the Parchment Paper: Not lining your baking pan may cause brownies to stick. Always use parchment paper for easy removal.
- Using Low-Quality Cocoa Powder: Poor-quality cocoa affects flavor. Use Dutch process cocoa powder for rich chocolatey taste.
- Not Measuring Ingredients Accurately: Incorrect measurements can ruin the recipe. Use measuring cups and spoons for precision.
- Baking Too Long or Short: Overbaking makes brownies dry, while underbaking leaves them gooey. Check with a toothpick for doneness.
- Ignoring Cooling Time: Cutting warm brownies leads to messiness. Allow them to cool completely for clean slices.

Storage & Reheating Instructions
Refrigerator Storage
- Store marshmallow brownies in an airtight container.
- They will last up to 5 days in the refrigerator.
Freezing Marshmallow Brownies
- Wrap individual brownies in plastic wrap before placing them in a freezer bag.
- They can be frozen for up to 3 months.
Reheating Marshmallow Brownies
- Oven: Preheat your oven to 350°F and warm brownies for about 10 minutes.
- Microwave: Heat on low power for 10-15 seconds until warm.
- Stovetop: Place a brownie in a pan over low heat, covering it with a lid until heated through.
Frequently Asked Questions
What are Marshmallow Brownies?
Marshmallow brownies are rich, fudgy chocolate brownies topped with swirls of marshmallow fluff, making them a delightful treat.
How do I store leftover Marshmallow Brownies?
Store leftover brownies in an airtight container at room temperature for up to 5 days or refrigerate them for longer freshness.
Can I freeze Marshmallow Brownies?
Yes! You can freeze marshmallow brownies wrapped individually in plastic wrap and stored in a freezer bag for up to 3 months.
What makes these brownies so fudgy?
The combination of melted butter, eggs, and chocolate chips creates a moist texture, while the cocoa powder adds rich chocolate flavor.
Can I customize my Marshmallow Brownies?
Absolutely! Feel free to add nuts, different chocolate chips, or even drizzle caramel on top for added flavor.
Final Thoughts
These marshmallow brownies are not just delicious; they’re also incredibly versatile. You can easily customize them with your favorite toppings or mix-ins. Whether you’re serving them at a party or enjoying them as a cozy treat at home, they’re sure to bring joy. Try this recipe today and indulge in the heavenly combination of chocolate and marshmallow!

Marshmallow Brownies
- Total Time: 1 hour 5 minutes
- Yield: Approximately 16 servings 1x
Description
Indulge in the ultimate dessert experience with these Marshmallow Brownies. This delightful recipe marries rich, fudgy chocolate brownies with sweet, fluffy marshmallow swirls, creating a treat that’s both comforting and decadent. Perfect for any gathering or as a cozy night-in dessert, these brownies will quickly become a favorite among friends and family. With simple ingredients and easy steps, you can whip up a batch in no time, satisfying even the most intense sweet cravings. Serve them warm with ice cream or enjoy them on their own for a truly delightful experience.
Ingredients
- 2 cups white granulated sugar
- 3 large eggs
- 1/2 cup unsalted butter (melted)
- 3/4 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow creme
Instructions
- Preheat your oven to 325°F. Grease a 9X9-inch baking pan and line it with parchment paper.
- In a medium bowl, sift together flour, cocoa powder, cornstarch, and salt; set aside.
- In a separate bowl, beat sugar, eggs, and yolk until pale. Mix in melted butter, vanilla extract, and oil.
- Gradually combine dry ingredients with the wet mixture until just mixed. Fold in chocolate chips.
- Pour the batter into the prepared pan. Heat marshmallow creme in the microwave for about 20 seconds until soft; dollop over the brownie batter and swirl gently with a knife.
- Bake for 45-55 minutes or until a toothpick comes out slightly wet but not covered in batter.
- Allow to 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 (50g)
- Calories: 220
- Sugar: 23g
- Sodium: 95mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 31g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 45mg