Marshmallow Brownies
These Marshmallow Brownies are an irresistible treat that combines fudgy chocolate brownies with a delightful swirl of marshmallow fluff on top. Perfect for parties, family gatherings, or just a cozy night in, these brownies will satisfy any sweet tooth. Their rich flavor and gooey texture make them stand out among traditional brownie recipes. Plus, they’re simple to make, ensuring you can whip them up whenever the craving strikes!
Why You’ll Love This Recipe
- Decadent Flavor: The combination of chocolate and marshmallow creates a rich and satisfying dessert experience.
- Easy to Make: With straightforward steps, even beginner bakers can achieve delicious results.
- Versatile Treat: Perfect for any occasion—birthdays, holidays, or just a sweet snack.
- Fudgy Texture: The addition of chocolate chips and marshmallow fluff gives these brownies a wonderfully moist and chewy consistency.
- Crowd-Pleaser: Everyone loves brownies! These unique marshmallow brownies will impress friends and family alike.
Tools and Preparation
Before starting your delicious journey into making marshmallow brownies, gather your tools. Having everything ready ensures a smooth baking process.
Essential Tools and Equipment
- Mixing bowl
- Whisk or mixer
- Rubber spatula
- 9X9-inch baking pan
- Parchment paper
- Microwave-safe bowl
Importance of Each Tool
- Mixing bowl: A sturdy mixing bowl is essential for combining ingredients without spillage.
- Whisk or mixer: Using a whisk or electric mixer helps achieve the light and fluffy texture needed for the brownie batter.
- Rubber spatula: This tool is perfect 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.
Key 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 (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 your 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.
Step 2: Prepare Dry Ingredients
In a medium bowl, sift together the flour, cocoa powder, cornstarch, and salt. Set this mixture aside as you prepare the wet ingredients.
Step 3: Mix Wet Ingredients
Using a mixer with a whisk attachment, beat together the sugar, eggs, and egg yolk on high speed for about 5 minutes until it becomes pale in color. While mixing, melt the butter in the microwave and let it cool before adding it to the mixture.
Step 4: Combine Wet and Dry Mixtures
Add the oil, melted butter, and vanilla extract to the egg mixture. Mix on low speed until combined. Gradually add the dry ingredients while continuing to mix on low until just combined. Gently fold in the semi-sweet chocolate chips using a rubber spatula.
Step 5: Add Marshmallow Fluff
Pour your brownie batter into the prepared pan. In a microwave-safe bowl, melt the marshmallow fluff for about 20-30 seconds until it’s easier to dollop. Use a teaspoon to place dollops of marshmallow fluff on top of the brownie batter. With a butter knife, lightly swirl the marshmallow fluff into the brownie batter.
Step 6: Bake Your Brownies
Bake in your preheated oven for about 45–55 minutes. Check for doneness by inserting a toothpick; it should come out slightly wet but not covered in batter. If too much batter sticks to it, continue baking for another 5 minutes.
Step 7: Cool and Serve
Allow your brownies to cool completely on a cooling rack before cutting them into squares for serving.
Enjoy every bite of these delicious marshmallow brownies!
How to Serve Marshmallow Brownies
Marshmallow brownies are a delightful treat that can be enjoyed in various ways. Here are some creative serving suggestions to elevate your dessert experience.
Serve Warm with Ice Cream
- Vanilla ice cream – A scoop of creamy vanilla balances the rich chocolate flavor.
- Mint chocolate chip – Add a refreshing twist with minty chocolate goodness.
- Salted caramel – Drizzle warm salted caramel over the top for a decadent touch.
Pair with Fresh Fruits
- Strawberries – The sweetness of strawberries complements the fudgy brownies well.
- Raspberries – Their tartness contrasts nicely with the sweetness of marshmallows.
- Bananas – Sliced bananas add a creamy texture and enhance the flavors.
Create a Brownie Sundae
- Chocolate sauce – Top with warm chocolate sauce for an extra indulgent treat.
- Whipped cream – A dollop of whipped cream adds lightness to each bite.
- Nuts – Sprinkle chopped nuts on top for added crunch and flavor.
Add a Fun Presentation
- Brownie bites – Cut brownies into small squares for easy sharing at parties.
- Skewers – Thread brownie pieces and marshmallows onto skewers for a fun dessert.
- Platter display – Arrange brownies on a decorative platter with fruits and sauces.

How to Perfect Marshmallow Brownies
Achieving the perfect marshmallow brownies requires attention to detail. Here are some tips to help you master this delicious treat.
- Use quality ingredients – Choose high-quality cocoa powder and chocolate chips for rich flavor.
- Don’t overmix – Mix just until combined to keep your brownies fudgy and moist.
- Check your oven temperature – An accurate oven ensures even baking; use an oven thermometer if needed.
- Let them cool completely – Allowing brownies to cool makes cutting easier and improves texture.
- Experiment with toppings – Try different toppings like crushed candies or caramel drizzle for variety.
Best Side Dishes for Marshmallow Brownies
Marshmallow brownies can be paired with several side dishes that complement their rich flavors. Here are some excellent options to consider.
- Fruit Salad – A mix of seasonal fruits provides freshness and balances the sweetness of brownies.
- Coffee – Serving a cup of brewed coffee enhances the rich chocolate flavor of the brownies.
- Hot Chocolate – For chocolate lovers, pairing with hot cocoa creates an indulgent experience.
- Cheese Plate – A selection of cheeses offers a savory contrast to sweet marshmallow brownies.
- Yogurt Parfait – Layered yogurt with granola adds texture and is a lighter option alongside brownies.
- Nutty Granola Bars – Chewy granola bars provide an exciting crunch that pairs well with soft brownies.
Common Mistakes to Avoid
When making marshmallow brownies, it’s easy to make a few common mistakes. Here are some pitfalls to watch for.
- Skipping the Parchment Paper: Not lining your pan can lead to brownies that stick. Always use parchment paper for easy removal.
- Overmixing the Batter: Mixing too much can make your brownies tough. Combine ingredients just until they are mixed for a fudgy texture.
- Not Measuring Ingredients Accurately: Using incorrect measurements can ruin the recipe. Always use measuring cups and spoons for precision.
- Ignoring Oven Temperature: Baking at the wrong temperature can affect texture. Use an oven thermometer to ensure accuracy.
- Cutting Brownies Too Soon: Cutting before they cool can lead to messy brownies. Allow them to cool completely for clean cuts.

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 brownies tightly in plastic wrap, then place them in a freezer bag.
- They can be frozen for up to 3 months.
Reheating Marshmallow Brownies
- Oven: Preheat your oven to 350°F, wrap brownies in foil, and heat for about 10-15 minutes.
- Microwave: Heat on medium power for 10-15 seconds until warm, being careful not to overheat.
- Stovetop: Place a brownie in a skillet over low heat, covering it with a lid until warmed through.
Frequently Asked Questions
What makes marshmallow brownies different from regular brownies?
Marshmallow brownies have a layer of marshmallow fluff swirled into the batter, adding a delightful sweetness and chewy texture that regular brownies lack.
Can I use different types of chocolate chips?
Yes! Feel free to substitute semi-sweet chocolate chips with milk chocolate or dark chocolate chips based on your preference.
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 wet batter.
Can I customize my marshmallow brownie recipe?
Absolutely! You can add nuts, caramel swirls, or even different flavor extracts to create your unique version of marshmallow brownies.
Final Thoughts
These marshmallow brownies are not only indulgent but also incredibly versatile. Whether you enjoy them as is or customize with your favorite mix-ins, they are bound to satisfy any sweet tooth. Try this recipe today and discover how delightful these treats can be!

Marshmallow Brownies
- Total Time: 1 hour 5 minutes
- Yield: Approximately 16 brownies 1x
Description
Indulge in the ultimate dessert experience with these Marshmallow Brownies, a decadent blend of fudgy chocolate and sweet marshmallow fluff. Perfect for any occasion, from family gatherings to cozy nights in, these brownies are sure to impress. They boast a rich flavor profile and a gooey texture that sets them apart from traditional brownies. With easy-to-follow instructions, even novice bakers can create this delightful treat at home. Whether you serve them warm with ice cream or as part of a festive dessert platter, these marshmallow brownies will satisfy your sweet cravings and become a favorite in your recipe collection.
Ingredients
- 2 cups white granulated sugar
- 3 large eggs
- 1 egg yolk
- 1/2 cup unsalted butter (melted)
- 1/2 cup oil (canola or vegetable)
- 2 tsp pure vanilla extract
- 3/4 cup all-purpose flour
- 1 cup unsweetened cocoa powder
- 1 1/2 tbsp cornstarch
- 1/2 tsp salt
- 1 cup semi-sweet chocolate chips
- 1 cup marshmallow creme
Instructions
- Preheat oven to 325°F and prepare a 9×9-inch baking pan with nonstick spray and parchment paper.
- In a medium bowl, sift together flour, cocoa powder, cornstarch, and salt.
- In a mixing bowl, combine sugar, eggs, and egg yolk; beat on high speed until pale (about 5 minutes). Add melted butter, oil, and vanilla; mix until combined.
- Gradually incorporate dry ingredients into wet mixture until just combined. Fold in chocolate chips using a rubber spatula.
- Pour brownie batter into the prepared pan. Melt marshmallow fluff in the microwave for easy dolloping; swirl into the batter with a knife.
- Bake for 45–55 minutes until slightly wet toothpick comes out clean but not covered in 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 (50g)
- Calories: 220
- Sugar: 23g
- Sodium: 120mg
- Fat: 10g
- Saturated Fat: 5g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 33g
- Fiber: 2g
- Protein: 2g
- Cholesterol: 30mg