Fluffernutter Brownies are a delightful treat that combines creamy peanut butter with fluffy vegan marshmallows, all nestled between two luscious layers of fudgy brownies. Perfect for parties, family gatherings, or simply satisfying your sweet tooth, these brownies stand out for their rich flavor and unique texture. Whether you’re serving them as a dessert or a snack, they are sure to impress!
Why You’ll Love This Recipe
- Decadent Flavor: The combination of chocolate, peanut butter, and marshmallow creates an irresistible taste that everyone will enjoy.
- Easy to Make: With straightforward steps and readily available ingredients, you can whip up these brownies in no time.
- Versatile Dessert: Perfect for any occasion—be it a birthday party, holiday gathering, or just a cozy night in with friends.
- Crowd-Pleaser: These Fluffernutter Brownies are sure to be a hit with both kids and adults alike!
- Customizable: Feel free to add nuts or swap peanut butter for almond butter to suit your taste.
Tools and Preparation
Before diving into the baking process, gather your tools and ensure you have everything you need. Having the right equipment makes the preparation smoother and more enjoyable.
Essential Tools and Equipment
- 9×13-inch ceramic baking dish
- Parchment paper
- Large mixing bowl
- Whisk
- Large saucepan
- Instant-read thermometer
Importance of Each Tool
- 9×13-inch ceramic baking dish: This size is perfect for even baking and easy cutting into brownie squares.
- Parchment paper: Prevents sticking and makes cleanup effortless.
- Large mixing bowl: Provides ample space for combining ingredients without spills.
- Instant-read thermometer: Ensures your sugar mixture reaches the right temperature for perfect texture.

Ingredients
To create these decadent Fluffernutter Brownies, you’ll need the following ingredients:
For the Brownie Base
- 1 ⅓ cups (167.3 g) regular unsweetened cocoa powder
- 1 cup (125 g) all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon kosher salt
- 1 teaspoon espresso powder
For the Fudgy Mixture
- 1 cup (2 sticks / 227 g) unsalted butter (room temperature)
- 2 cups (400 g) granulated sugar
- 1 cup (168 g) semi-sweet chocolate chips
- 1 tablespoon vanilla extract
- 4 large eggs (room temperature)
For the Fluff Layer
- ¾ cup (193.5 g) creamy peanut butter
- 1 cup (96 g) vegan marshmallows fluff
How to Make Fluffernutter Brownies
Step 1: Preheat the Oven
Preheat your oven to 350°F. Prepare a 9×13-inch ceramic baking dish by lining it with parchment paper. This will help with easy removal after baking.
Step 2: Combine Dry Ingredients
In a large mixing bowl, whisk together the following dry ingredients:
1. Cocoa powder
2. All-purpose flour
3. Baking powder
4. Kosher salt
5. Espresso powder
Set this mixture aside while you prepare the wet ingredients.
Step 3: Melt Butter and Sugar
In a large saucepan over medium heat, combine:
1. Unsalted butter
2. Granulated sugar
Once the butter melts, increase heat to low boil for about two minutes until it reaches 230°F on an instant-read thermometer. Stir occasionally.
Step 4: Mix Chocolate Chips and Vanilla
Remove from heat and stir in:
1. Semi-sweet chocolate chips
2. Vanilla extract
Allow it to cool for about ten minutes until it’s slightly warm but not hot.
Step 5: Add Eggs
Add eggs one at a time into the cooled mixture, stirring constantly until fully incorporated and smooth.
Step 6: Combine Wet and Dry Ingredients
Gradually add the dry ingredient mixture into the chocolate mixture, stirring until just combined. The batter should be thick yet smooth.
Now you’re ready to layer your brownies!
How to Serve Fluffernutter Brownies
Fluffernutter Brownies are a delightful treat that can be enjoyed in various ways. Whether you want to impress guests or indulge yourself, these serving suggestions will enhance your experience.
A La Mode
- Serve warm brownies topped with a scoop of vanilla ice cream for a rich and creamy dessert that balances the chocolate and peanut butter flavors.
With Whipped Cream
- Add a dollop of whipped cream on top of each brownie for an extra layer of sweetness and a light texture that complements the fudgy base.
Drizzled with Chocolate Sauce
- Enhance the chocolate flavor by drizzling warm chocolate sauce over the brownies. This adds an indulgent touch that chocolate lovers will adore.
Sliced Fresh Fruits
- Pairing brownies with sliced strawberries or bananas adds freshness and contrast, making for a more balanced dessert experience.
Coffee or Tea Pairing
- Enjoy your brownies alongside a cup of coffee or tea. The warmth of the drink enhances the flavors and makes for a cozy treat.
Brownie Sundae
- Create a brownie sundae by layering pieces of Fluffernutter Brownies in a bowl with ice cream, whipped cream, and your favorite toppings like nuts or sprinkles.
How to Perfect Fluffernutter Brownies
Perfecting Fluffernutter Brownies is all about attention to detail. Follow these tips for the best results.
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Use Room Temperature Ingredients: Make sure your eggs and butter are at room temperature for easier mixing and better texture.
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Measure Ingredients Carefully: Accurate measurements ensure the right balance of flavors; use a kitchen scale if possible.
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Don’t Overmix: Mix just until combined when adding dry ingredients. Overmixing can lead to tough brownies.
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Check Oven Temperature: Ensure your oven is calibrated correctly; slight variations can affect baking time and texture.
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Cool Before Cutting: Allow brownies to cool completely before cutting them into squares. This helps maintain their shape and texture.
Best Side Dishes for Fluffernutter Brownies
Complementing your Fluffernutter Brownies with side dishes can elevate your dessert experience. Here are some delightful options:
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Fresh Fruit Salad
A mix of seasonal fruits adds brightness and freshness, balancing the richness of the brownies. -
Nutty Granola
Serve crunchy nutty granola on the side for added texture; it’s perfect for scooping up bites of brownie. -
Chocolate-Covered Strawberries
These sweet treats provide an elegant touch and pair well with the chocolaty flavor of the brownies. -
Toasted Coconut Flakes
Sprinkling toasted coconut on top offers a chewy contrast that pairs nicely with chocolate and peanut butter. -
Chilled Coconut Milk
A refreshing glass of chilled coconut milk provides a light, creamy contrast that complements rich desserts well. -
Ice Cream Floats
Create fun ice cream floats using soda and ice cream as an interactive side dish that kids will love!
Common Mistakes to Avoid
Fluffernutter Brownies are a delightful treat, but there are several common mistakes that can affect their outcome.
- Bold ingredient measurement: Failing to measure ingredients accurately can lead to imbalanced flavors and textures. Always use a kitchen scale or measuring cups for precision.
- Bold underbaking the brownies: Not baking long enough may result in gooey centers that fall apart. Ensure you check for doneness with a toothpick; it should come out with a few moist crumbs.
- Bold skipping the cooling step: Rushing the cooling process after melting chocolate may cause a grainy texture in your batter. Allow it to cool for at least 10 minutes before adding eggs.
- Bold overmixing the batter: Mixing too much after adding dry ingredients can create tough brownies. Stir just until everything is combined for the best texture.
- Bold not lining the pan: Skipping parchment paper can make removing the brownies difficult. Always line your baking dish to ensure easy removal and cleanup.

Storage & Reheating Instructions
Refrigerator Storage
- Store Fluffernutter Brownies in an airtight container.
- They will last up to 5 days in the refrigerator.
Freezing Fluffernutter Brownies
- Wrap brownies tightly in plastic wrap or foil.
- Place them in a freezer-safe container; they will stay fresh for up to 3 months.
Reheating Fluffernutter Brownies
- Oven: Preheat to 350°F, place brownies on a baking sheet, cover with foil, and heat for about 10 minutes.
- Microwave: Place one brownie on a microwave-safe plate and heat for 15-20 seconds for a warm treat.
- Stovetop: Heat in a non-stick skillet over low heat for about 2-3 minutes until warmed through.
Frequently Asked Questions
Here are some common questions about making Fluffernutter Brownies.
What makes Fluffernutter Brownies special?
Fluffernutter Brownies combine rich chocolate flavor with creamy peanut butter and sweet marshmallow fluff, creating an indulgent dessert that satisfies all cravings.
Can I use natural peanut butter instead of creamy?
Yes, you can use natural peanut butter, but keep in mind it may alter the texture slightly due to its different oil content.
How do I store leftover Fluffernutter Brownies?
Store any leftovers in an airtight container at room temperature for up to 5 days or refrigerate them for longer freshness.
Can I freeze Fluffernutter Brownies?
Absolutely! Wrap them well and freeze them for up to 3 months. Thaw them in the fridge overnight when you’re ready to enjoy.
Are there any variations I can try?
You can customize these brownies by adding nuts, different types of chocolate chips, or even swirls of caramel for an extra treat!
Final Thoughts
Fluffernutter Brownies are not only delicious but also incredibly versatile. They offer a perfect blend of flavors that appeal to both peanut butter and chocolate lovers alike. Feel free to mix things up with your favorite add-ins or toppings. Don’t hesitate—give this recipe a try today!
Fluffernutter Brownies
- Total Time: 45 minutes
- Yield: Approximately 16 servings 1x
Description
Indulge in the rich, fudgy delight of Fluffernutter Brownies, a perfect combination of creamy peanut butter and sweet vegan marshmallows fluff nestled between two luscious layers of chocolate brownies. These brownies are not only a treat for the taste buds but also an easy-to-make dessert that will impress your guests and satisfy your cravings. Ideal for parties, family gatherings, or cozy nights in, these decadent bars bring joy to both kids and adults alike. With simple ingredients and straightforward preparation steps, you can whip up this crowd-pleaser in no time. Get ready to enjoy a delightful dessert that offers a unique texture and irresistible flavor!
Ingredients
- 1 ⅓ cups (167.3 g) regular unsweetened cocoa powder
- 1 cup (125 g) all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon kosher salt
- 1 teaspoon espresso powder
- 1 cup (227 g) unsalted butter (room temperature)
- 2 cups (400 g) granulated sugar
- 1 cup (168 g) semi-sweet chocolate chips
- 1 tablespoon vanilla extract
- 4 large eggs (room temperature)
- ¾ cup (193.5 g) creamy peanut butter
- 1 cup (96 g) vegan marshmallows fluff
Instructions
- Preheat the oven to 350°F and line a 9×13-inch ceramic baking dish with parchment paper.
- In a large mixing bowl, whisk together cocoa powder, flour, baking powder, salt, and espresso powder.
- In a saucepan over medium heat, melt the butter and sugar until it reaches 230°F on an instant-read thermometer. Stir in chocolate chips and vanilla until melted.
- Let the mixture cool slightly before adding eggs one at a time, stirring until smooth.
- Gradually mix in the dry ingredients until just combined.
- Pour half of the brownie mixture into the prepared pan. Layer with peanut butter and vegan marshmallows fluff, then top with remaining brownie batter.
- Bake for 25-30 minutes or until a toothpick comes out with moist crumbs.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 brownie (50g)
- Calories: 220
- Sugar: 20g
- Sodium: 95mg
- Fat: 10g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 33g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 35mg
Keywords: Use room temperature ingredients for easier mixing. Customize by adding nuts or swapping peanut butter for almond butter. Allow brownies to cool completely before cutting for neat squares.




