Marshmallow Brownies
These marshmallow brownies are the perfect treat for any occasion, combining rich chocolate flavor with a delightful marshmallow fluff swirled on top. They offer a fudgy texture that melts in your mouth, making them an ideal dessert for parties, family gatherings, or cozy evenings at home. With gooey chocolate chips and a unique marshmallow twist, these brownies stand out from traditional recipes and are sure to impress your guests.
Why You’ll Love This Recipe
- Easy to Make: The preparation is simple and quick, making it great for bakers of all levels.
- Fudgy Texture: The combination of chocolate and marshmallow creates a decadent, moist brownie that you will crave.
- Versatile Treat: Perfect for any celebration or as an everyday snack; these brownies fit all occasions.
- Crowd-Pleaser: Rich flavors and attractive presentation make these brownies a hit with both kids and adults.
- Make Ahead Option: These brownies store well, allowing you to prepare them in advance for busy days.
Tools and Preparation
Before diving into the recipe, gather your tools to ensure a smooth baking experience. Having everything ready will help you focus on creating these delicious marshmallow brownies.
Essential Tools and Equipment
- Mixing bowls
- Whisk or mixer with whisk attachment
- 9×9-inch baking pan
- Parchment paper
- Rubber spatula
- Microwave-safe bowl or container
Importance of Each Tool
- Mixing bowls: Essential for combining ingredients effectively without mess.
- Whisk or mixer with whisk attachment: Helps achieve the desired texture in the batter by incorporating air for lightness.
- Baking pan: A sturdy pan ensures even cooking and easy removal of your finished brownies.
Ingredients
These marshmallow brownies are super fudgy chocolate brownie 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 Swirl
- 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, then spray again.
Step 2: Prepare Dry Ingredients
In a medium bowl, sift together:
1. All-purpose flour
2. Cocoa powder
3. Cornstarch
Add in salt and set aside.
Step 3: Mix Wet Ingredients
Using a mixer with a whisk attachment, beat together:
1. Sugar
2. Eggs
3. Egg yolk
on high speed for about 5 minutes until pale in color. Meanwhile, melt the butter in the microwave and let it cool slightly.
Step 4: Combine Ingredients
Add oil, melted butter, and vanilla into the egg mixture. Mix on low speed until combined. Gently add dry ingredients and mix on low until just combined. Fold in semi-sweet chocolate chips using a rubber spatula.
Step 5: Add Marshmallow Swirl
Pour brownie batter into the prepared pan. Melt marshmallow fluff in the microwave for about 20-30 seconds until soft. Use a teaspoon to dollop marshmallow fluff on top of brownie batter, then swirl lightly with a butter knife.
Step 6: Bake
Bake for 45-55 minutes until done; insert a toothpick into the center; it should come out slightly wet but not runny. If too much batter comes out, bake for another 5 minutes.
Step 7: Cool and Serve
Allow brownies to cool completely on a cooling rack before cutting into squares and serving them fresh!
How to Serve Marshmallow Brownies
Serving marshmallow brownies can elevate your dessert experience. Whether you’re hosting a gathering or enjoying a cozy night in, these brownies are versatile and delightful.
With Ice Cream
- Vanilla Ice Cream: The classic choice. A scoop of vanilla ice cream complements the fudgy texture of the brownies perfectly.
- Mint Chocolate Chip: For a refreshing twist, mint chocolate chip ice cream adds a cool contrast to the rich flavors.
- Cookies and Cream: The crunchy bits in cookies and cream ice cream pair wonderfully with the soft marshmallow topping.
Drizzled with Sauce
- Chocolate Sauce: A warm drizzle of chocolate sauce enhances the brownie’s chocolaty goodness.
- Caramel Sauce: For those who love a sweet touch, caramel sauce adds richness and depth to each bite.
- Raspberry Sauce: A fruity raspberry sauce offers a tart balance that cuts through the sweetness.
Topped with Extras
- Whipped Cream: Light and fluffy whipped cream makes for an indulgent topping that enriches each serving.
- Chopped Nuts: Add some crunch with chopped walnuts or pecans sprinkled on top for texture.
- Fresh Berries: Strawberries or raspberries add a fresh element and brighten up the presentation.

How to Perfect Marshmallow Brownies
Getting your marshmallow brownies just right can make all the difference. Here are some tips for achieving the perfect batch.
- Use quality ingredients: High-quality chocolate and cocoa powder will give your brownies richer flavors.
- Don’t overmix: Mix until just combined when adding dry ingredients to keep your brownies fudgy.
- Check doneness carefully: Insert a toothpick; it should come out slightly wet but not covered in batter for ideal texture.
- Cool completely: Allowing the brownies to cool fully helps them set properly, making cutting easier.
Best Side Dishes for Marshmallow Brownies
Pairing side dishes with marshmallow brownies can enhance your dessert spread. Here are some delicious options:
- Fresh Fruit Salad: A refreshing mix of seasonal fruits balances the sweetness of the brownie.
- Cheese Platter: Include assorted cheeses for a savory contrast that complements the sweetness of marshmallows.
- Coffee or Espresso: A robust cup of coffee enhances chocolate flavors and provides a great after-meal companion.
- Milkshakes: Creamy milkshakes, especially chocolate or vanilla, create a delightful treat alongside brownies.
- Pecan Pie: This nutty dessert adds richness that pairs beautifully with chocolate desserts like marshmallow brownies.
- Chocolate Fondue: Dip slices of brownie into warm chocolate fondue for an interactive dessert experience.
- Nutella Spread: Serve Nutella on the side for extra indulgence; it’s perfect for those who crave more chocolate!
- Sweetened Greek Yogurt: A dollop of sweetened yogurt offers a creamy, tangy contrast without overpowering the brownie flavor.
Common Mistakes to Avoid
Making marshmallow brownies can be a delightful experience, but avoiding common pitfalls is key to achieving the perfect treat.
- Overmixing the batter: Mixing too much can lead to tough brownies. Mix until just combined to keep them fudgy.
- Ignoring oven temperature: Baking at the wrong temperature may affect the texture. Always preheat your oven and use an oven thermometer if needed.
- Not using parchment paper: Skipping this step can result in brownies sticking to the pan. Line your pan with parchment for easy removal.
- Underbaking or overbaking: This can make your brownies too gooey or dry. Check doneness with a toothpick; it should come out slightly wet.
- Skipping the cooling time: Cutting into hot brownies will result in messy pieces. Allow them to cool completely for clean cuts.

Storage & Reheating Instructions
Refrigerator Storage
- Store uneaten marshmallow brownies in an airtight container.
- They will last for up to 5 days in the fridge.
Freezing Marshmallow Brownies
- Wrap individual brownies tightly in plastic wrap before placing them in a freezer-safe container.
- They can be frozen for up to 3 months.
Reheating Marshmallow Brownies
- Oven: Preheat to 350°F and warm brownies for about 10 minutes for a fresh taste.
- Microwave: Heat on low for 15-20 seconds; be careful not to overheat.
- Stovetop: Place a brownie in a pan on low heat, cover, and warm for about 5 minutes.
Frequently Asked Questions
Here are some common questions about making marshmallow brownies that you might find helpful.
What makes marshmallow brownies different from regular brownies?
Marshmallow brownies have a layer of fluffy marshmallow cream swirled on top, giving them a unique flavor and texture compared to traditional brownies.
Can I use mini marshmallows instead of marshmallow fluff?
Yes, you can use mini marshmallows as an alternative, but they won’t create the same smooth swirl effect as marshmallow fluff does.
How do I know when my marshmallow brownies are done?
Your marshmallow brownies are done when a toothpick inserted into the center comes out with slight moist crumbs. If it comes out clean, they may be overbaked.
Can I customize my marshmallow brownies?
Absolutely! You can add nuts, different types of chocolate chips, or even flavored extracts to make them uniquely yours.
Final Thoughts
These marshmallow brownies are not only delicious but also versatile. You can customize them with your favorite mix-ins for a personal touch. Whether it’s for parties or cozy family nights, these treats are sure to delight everyone!

Marshmallow Brownies
- Prep Time: 15 minutes
- Cook Time: 50 minutes
- Total Time: 1 hour 5 minutes
- Yield: Approximately 16 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
Indulge in the ultimate dessert experience with these decadent marshmallow brownies. Combining a rich chocolatey base with a light, fluffy marshmallow swirl, this recipe creates a fudgy treat that melts in your mouth. Perfect for any occasion—be it a family gathering or cozy nights at home—these brownies are sure to impress everyone. With gooey chocolate chips and an alluring marshmallow topping, they elevate traditional brownies to new heights of deliciousness.
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 crème
Instructions
- Preheat the oven to 325°F and prepare a 9×9-inch baking pan by lining it with parchment paper.
- In a bowl, sift together flour, cocoa powder, and salt; set aside.
- In another bowl, beat sugar, eggs, and egg yolk until pale. Mix in melted butter and vanilla.
- Gradually combine dry ingredients into the wet mixture, then fold in chocolate chips.
- Spread batter in the prepared pan and dollop marshmallow crème on top; swirl gently.
- Bake for 45-55 minutes until a toothpick comes out slightly moist but not runny.
- Let cool completely before cutting into squares.
Nutrition
- Serving Size: 1 brownie (70g)
- Calories: 320
- Sugar: 28g
- Sodium: 180mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 47g
- Fiber: 3g
- Protein: 4g
- Cholesterol: 50mg