Marshmallow Brownies
These Marshmallow Brownies are the ultimate treat for chocolate lovers! Rich, fudgy, and topped with a delightful swirl of marshmallow fluff, these brownies are perfect for any occasion. Whether you’re celebrating a birthday, hosting a get-together, or simply indulging yourself, these brownies will surely impress. Their unique texture and flavor make them a standout dessert that everyone will adore.
Why You’ll Love This Recipe
- Easy to Make: With simple ingredients and straightforward steps, anyone can whip up these delicious brownies.
- Fudgy Texture: The combination of chocolate chips and marshmallow fluff creates an irresistibly gooey texture.
- Versatile Dessert: Perfect for parties, bake sales, or just a sweet treat at home. They suit any occasion!
- Chocolate Lover’s Dream: A rich cocoa flavor paired with marshmallow makes for an indulgent experience.
- Customizable Toppings: Feel free to add nuts or extra chocolate chips to personalize your brownies!
Tools and Preparation
Having the right tools is essential for making these marshmallow brownies perfectly. Here’s what you’ll need.
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Essential Tools and Equipment
- Mixing bowl
- Whisk or mixer
- 9×9-inch baking pan
- Parchment paper
- Rubber spatula
- Butter knife
Importance of Each Tool
- Mixing bowl: Necessary for combining ingredients evenly without spilling.
- Whisk or mixer: Ensures the eggs and sugar are whipped to perfection for a light batter.
- Baking pan: A sturdy pan helps achieve even baking and easy removal of the brownies.
- Rubber spatula: Ideal for folding in chocolate chips 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 Topping
- 1 cup Marshmallow creme
How to Make Marshmallow Brownies
Step 1: Preheat the Oven
Preheat the oven to 325°F. Spray a 9×9-inch baking pan with nonstick spray. Line the bottom and two sides of the pan with parchment paper and spray again.
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: Whip Sugar and Eggs
Using a mixer with a whisk attachment, beat the sugar, eggs, and egg yolk on high speed for about 5 minutes until it becomes pale in color. Meanwhile, melt the butter in the microwave and let it cool slightly.
Step 4: Combine Wet Ingredients
Add the oil, melted butter, and vanilla extract to the egg mixture. Mix on low speed until combined. Gradually add in the dry ingredients while mixing on low until just combined. Fold in the chocolate chips using a rubber spatula.
Step 5: Prepare for Baking
Pour the brownie batter into your prepared pan. In another bowl, melt the marshmallow fluff in the microwave for about 20-30 seconds until soft enough to dollop onto your batter. Use a teaspoon to place small dollops of marshmallow fluff on top of the brownie batter. Lightly swirl it using a butter knife.
Step 6: Bake
Bake in your preheated oven for 45-55 minutes. The brownies are done when you insert a toothpick, and it comes out slightly wet but not covered in batter. If necessary, bake for an additional 5 minutes.
Step 7: Cool and Serve
Allow cooling on a rack completely before cutting into squares and serving your delicious marshmallow brownies!
How to Serve Marshmallow Brownies
Marshmallow brownies are a delightful treat that can be served in various ways to enhance their flavor and presentation. Here are some creative serving suggestions to enjoy these fudgy delights.
A la Mode
- Ice Cream: Top each brownie with a scoop of vanilla or chocolate ice cream for a rich, creamy contrast.
- Whipped Cream: Add a dollop of whipped cream on top to make it extra indulgent.
With Fresh Fruits
- Berries: Serve with fresh raspberries or strawberries for a refreshing tartness that balances the sweetness.
- Bananas: Sliced bananas add a soft texture and complement the chocolate beautifully.
Drizzled Toppings
- Chocolate Sauce: Drizzle warm chocolate sauce over the brownies for an added layer of chocolatey goodness.
- Caramel Sauce: A drizzle of caramel sauce adds a sweet, buttery flavor that pairs well with marshmallows.
Pairing Beverages
- Coffee: Serve with a cup of freshly brewed coffee to enhance the chocolate flavors.
- Milk: A classic tall glass of milk is perfect for washing down these rich brownies.
Warmed Up
- Warm Brownies: Heat the brownies slightly in the microwave before serving for that gooey, melty texture.

How to Perfect Marshmallow Brownies
To achieve the best marshmallow brownies, follow these helpful tips. These suggestions will help you create the perfect dessert every time.
- Use quality ingredients: High-quality cocoa powder and chocolate chips enhance flavor and texture.
- Don’t overmix: Mix only until combined to maintain a fudgy consistency. Overmixing can result in cakey brownies.
- Check baking time: Every oven is different; check your brownies a few minutes before the recommended time to avoid overbaking.
- Cool completely before slicing: Allowing them to cool ensures clean cuts and better presentation when serving.
- Experiment with toppings: Try adding nuts or different types of chocolate chips for variety in flavor and crunch.
- Store properly: Keep leftovers in an airtight container at room temperature for up to 3 days, or freeze for longer storage.
Best Side Dishes for Marshmallow Brownies
Pairing side dishes with marshmallow brownies can elevate your dessert experience. Here are some delicious options that complement this sweet treat perfectly.
- Vanilla Ice Cream – Classic pairing that adds creaminess and balances the brownie’s richness.
- Fruit Salad – A mix of seasonal fruits offers freshness and contrasts nicely with the dense brownie.
- Chocolate Mousse – Light and airy, this mousse enhances the chocolate flavor without overwhelming it.
- Chocolate Pudding – For chocolate lovers, this will double the indulgence while keeping it creamy.
- Peanut Butter Dip – A rich peanut butter dip provides a savory contrast that works surprisingly well with sweets.
- Coffee Cake – Enjoy alongside coffee cake for a delightful brunch combination perfect for gatherings.
- Milkshake – Blend a thick milkshake for an ultimate dessert experience that is both satisfying and fun to enjoy.
Common Mistakes to Avoid
Making marshmallow brownies can be a delightful experience, but there are common mistakes that can ruin your batch. Here are some tips to ensure success.
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Using cold ingredients: Always allow your eggs and butter to reach room temperature before mixing. This helps create a smooth batter.
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Overmixing the batter: Once you add the dry ingredients, mix just until combined. Overmixing can lead to tough brownies.
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Not measuring accurately: Baking is a science. Use a kitchen scale or proper measuring cups to ensure accurate ingredient quantities for the best results.
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Skipping the parchment paper: Lining your pan with parchment paper makes removing the brownies easier and prevents sticking. Don’t skip this step!
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Not checking for doneness: Rely on a toothpick test to check if the brownies are done. They should be slightly wet—if too much batter sticks, bake longer.

Storage & Reheating Instructions
Refrigerator Storage
- Store brownies in an airtight container.
- They will stay fresh for up to 5 days in the fridge.
Freezing Marshmallow Brownies
- Wrap individual brownies tightly in plastic wrap.
- Place them in a freezer-safe bag or container. They can last up to 2 months in the freezer.
Reheating Marshmallow Brownies
- Oven: Preheat to 350°F and heat for about 10 minutes.
- Microwave: Heat for 15-20 seconds on medium power for a warm treat.
- Stovetop: Place in a skillet over low heat with a lid for about 5 minutes, keeping them moist.
Frequently Asked Questions
Here are some commonly asked questions about marshmallow brownies that may help clarify any doubts.
Can I use different types of chocolate chips in marshmallow brownies?
Yes, you can substitute semi-sweet chocolate chips with dark or milk chocolate chips based on your preference.
How do I make my marshmallow brownies more fudgy?
To achieve extra fudginess, reduce the flour amount slightly or add an additional egg yolk to increase moisture.
Can I use homemade marshmallow fluff?
Absolutely! Homemade marshmallow fluff can add an extra layer of flavor to your marshmallow brownies.
What should I do if my marshmallow brownies are too sticky?
If they are sticky after baking, it may be due to undercooking. Allow them to cool completely before cutting for better texture.
Final Thoughts
These marshmallow brownies offer a delicious blend of rich chocolate and fluffy sweetness that’s hard to resist. Perfect for gatherings or when you need a cozy treat, they can also be customized with nuts or other flavors. Try this recipe today and enjoy these delightful desserts!
Marshmallow Brownies
- Total Time: 1 hour 10 minutes
- Yield: Makes approximately 16 brownies 1x
Description
Experience the ultimate indulgence with these Marshmallow Brownies, a perfect treat for chocolate enthusiasts. These fudgy delights are layered with rich chocolate chips and crowned with a luscious swirl of marshmallow fluff, creating a heavenly dessert that’s ideal for any occasion. Whether you’re celebrating a birthday, hosting friends, or enjoying a cozy night in, these brownies will impress everyone around you. Easy to make and customizable with your favorite toppings, they are sure to become a staple in your dessert repertoire.
Ingredients
- 2 cups white granulated sugar
- 3 large eggs
- 1 egg yolk
- ½ cup unsalted butter (melted)
- 2 tsp pure vanilla extract
- ½ cup canola oil
- ¾ cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 ½ TBSP cornstarch
- ½ tsp salt
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow crème
Instructions
- Preheat the oven to 325°F (163°C). Prepare a 9×9-inch baking pan by spraying it with nonstick spray and lining it with parchment paper.
- In a medium bowl, sift together flour, cocoa powder, salt, and cornstarch; set aside.
- In a mixing bowl, beat together sugar, eggs, and egg yolk on high speed until pale (about 5 minutes). Add melted butter, oil, and vanilla extract; mix until combined.
- Gradually add dry ingredients while mixing on low speed. Fold in chocolate chips gently.
- Pour the batter into the prepared pan. Dollop melted marshmallow fluff over the top and lightly swirl it in using a butter knife.
- Bake for 45-55 minutes or until a toothpick inserted comes out slightly wet but not covered in batter.
- Allow cooling completely before cutting into squares.
- Prep Time: 20 minutes
- Cook Time: 50 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (63g)
- Calories: 265
- Sugar: 26g
- Sodium: 180mg
- Fat: 12g
- Saturated Fat: 6g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 38g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 40mg







