Fluffernutter Brownies Recipe

If you’re craving a truly indulgent treat that combines the best of fudgy chocolate brownies with the nostalgic flavors of peanut butter and marshmallow fluff, then you’re in for a real joyride with this Fluffernutter Brownies Recipe. These brownies are irresistibly rich, moist, and packed with swirls of creamy peanut butter and pillowy marshmallow fluff, giving you a dessert experience that’s both playful and deeply satisfying. Trust me, once you try this recipe, it will become your go-to for impressing friends or simply treating yourself to a cozy moment of sweet bliss.

this Recipe

Ingredients You’ll Need

The magic of these Fluffernutter Brownies lies in their simple, pantry-friendly ingredients. Each one plays a crucial role in balancing richness, moisture, and that signature peanut butter-fluff swirl that sets this dessert apart.

• 1 cup unsalted butter: Melts down to create a luscious, tender brownie base with deep buttery flavor.
• 1 cup granulated sugar: Adds essential sweetness and helps deliver a perfect texture.
• 1 cup brown sugar: Brings a note of caramel richness for warmth and complexity.
• 3 large eggs: Bind everything together and give the brownies their velvety crumb.
• 2 teaspoons vanilla extract: Enhances all the flavors with a hint of fragrant sweetness.
• 1 cup all-purpose flour: Provides structure so the brownies hold their shape without being dry.
• 1 cup unsweetened cocoa powder: Packs in intense chocolate flavor for that classic brownie taste.
• 1/2 teaspoon salt: Just enough to balance sweetness and bring out the chocolate.
• 3/4 cup marshmallow fluff: The fluffy star ingredient that adds a dreamy, sticky sweetness.
• 3/4 cup creamy peanut butter: Swirled throughout for creamy, nutty richness.
• 1/2 cup chocolate chips or chunks (optional): For an added layer of melty, gooey chocolate goodness.

How to Make Fluffernutter Brownies Recipe

Step 1: Prepare Your Pan and Oven

Start by preheating your oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper—this step ensures your brownies will come out effortlessly without sticking, making cleanup a breeze.

Step 2: Melt the Butter

Melt the unsalted butter in a small saucepan or a microwave-safe bowl. Let it cool for a few minutes—this prevents the eggs from cooking when you combine them next and helps create a smooth batter.

Step 3: Mix Sugars with Butter

Whisk the granulated sugar and brown sugar into the melted butter until the mixture is smooth and glossy. This blend of sugars gives you that perfect chewy, fudgy texture you’re after.

Step 4: Add Eggs and Vanilla

Beat in the eggs one at a time, followed by the vanilla extract. Mixing well at this stage creates a beautifully thick and shiny base for your brownies, setting you up for success.

Step 5: Combine Dry Ingredients

Carefully stir in the cocoa powder, all-purpose flour, and salt until just combined. It’s important not to overmix here; you want your brownies to be dense and moist, not tough or cakey.

Step 6: Layer the Batter and Swirls

Pour half of the brownie batter into your lined pan, smoothing it evenly. Then drop spoonfuls of creamy peanut butter and marshmallow fluff over the batter. Use a knife or a skewer to swirl them gently, creating gorgeous marbled patterns that promise every bite has a perfect balance of chocolate, peanut butter, and fluff.

Step 7: Add Remaining Batter and Swirl Again

Pour the remaining batter on top and repeat with more peanut butter and marshmallow fluff swirls if you like. This double swirl ensures the flavors are thoroughly delicious throughout the entire pan.

Step 8: Bake to Perfection

Bake the brownies for 28 to 32 minutes. You’ll know they’re ready when a toothpick comes out with just a few moist crumbs clinging to it, meaning they’re fudgy, not dry.

Step 9: Cool Before Slicing

Let your beautiful Fluffernutter Brownies cool completely in the pan before slicing. This cooling time lets the flavors settle and makes cutting clean squares easier.

How to Serve Fluffernutter Brownies Recipe

Garnishes

These brownies are spectacular on their own, but if you want to dress them up a bit, try sprinkling a few chopped roasted peanuts for crunch or a dusting of cocoa powder. A drizzle of melted chocolate can also add a luxe finishing touch that makes them look bakery-worthy.

Side Dishes

Serve these brownies alongside a scoop of vanilla ice cream or a dollop of whipped cream to balance their richness. A hot cup of coffee or creamy milk pairs beautifully too, making this a perfect afternoon pick-me-up or after-dinner treat.

Creative Ways to Present

If you’re sharing these at a party, cut them into bite-sized squares and thread them onto skewers alternating with fresh strawberries or banana slices. You can also sandwich two brownie pieces with extra marshmallow fluff or peanut butter for a playful twist on a classic sandwich.

Make Ahead and Storage

Storing Leftovers

Fluffernutter Brownies keep beautifully in an airtight container at room temperature for up to 3 days. This lets the peanut butter and marshmallow flavors meld even more, making each bite just as delicious as the first.

Freezing

For longer storage, wrap individual brownie squares tightly in plastic wrap and place them in a freezer-safe container or bag. They freeze well for up to 3 months, so you can enjoy this treat anytime you want a chocolate-peanut butter fix.

Reheating

To enjoy frozen brownies, thaw them at room temperature or warm briefly in the microwave for about 10-15 seconds. This brings back the gooey texture and helps the marshmallow fluff feel freshly melted again.

FAQs

Can I use crunchy peanut butter instead of creamy?

Absolutely! Using crunchy peanut butter will add a delightful texture contrast within the swirls, making each bite extra fun and nutty.

Is marshmallow fluff the same as marshmallow creme?

Yes, marshmallow fluff and marshmallow creme are essentially the same product, so you can use whichever you have on hand for this Fluffernutter Brownies Recipe.

Can I make these brownies gluten-free?

You can substitute the all-purpose flour with a gluten-free flour blend designed for baking. Just be sure the blend contains xanthan gum or a similar binder for best results.

What’s the best way to swirl the peanut butter and fluff?

Using a sharp knife or a skewer, gently swirl the dollops of peanut butter and marshmallow fluff into the brownie batter with careful twisting motions. The key is to swirl just enough to create pretty marbling without mixing everything together.

Can I add nuts or chocolate chips to the batter?

Definitely! Toss in some chopped nuts like walnuts or pecans, or stir chocolate chips into the batter before layering to add even more texture and flavor.

Final Thoughts

There is something truly special about the combination of chocolate, peanut butter, and marshmallow that just feels like a warm hug on a plate. This Fluffernutter Brownies Recipe is not only easy to make but endlessly crowd-pleasing, blending classic favorites in a wonderfully satisfying way. I encourage you to try it soon—once you do, these irresistible brownies will become one of your absolute favorites too!

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