There’s a certain joy that comes from the delightful combination of flavors and textures we all love—rich chocolate, creamy peanut butter, and fluffy marshmallow. I stumbled upon this Marshmallow Peanut Butter Brownies recipe during a cozy afternoon of experimenting with pantry staples, and let me tell you, it was a sweet discovery!
As I combined the familiar ingredients, the senses kicked in: the rich aroma of melting chocolate mingling with the nutty scent of peanut butter instantly took me back to my childhood, where every treat felt like a special occasion. The best part? These brownies are not only quick to whip up, but they also bring a smile to everyone’s face—they’ve been my secret weapon for potlucks and family gatherings!
So whether you’re a seasoned chef or someone trying to take a break from the fast-food routine, these indulgent brownies are a perfect way to satisfy your sweet cravings without any fuss. Grab your apron, and let’s dive into these gooey, fudgy delights!
Why are Marshmallow Peanut Butter Brownies a must-try?
Decadent flavor: The blend of creamy peanut butter and rich chocolate creates an irresistible indulgence that’s hard to resist.
Quick and easy: With just 20 minutes of prep time, you’ll have warm, gooey brownies that are perfect for sharing or savoring alone.
Crowd-pleaser: Bake these for your next gathering, and watch as everyone comes back for seconds (or thirds!).
Texture paradise: Enjoy the delightful contrast of fudgy brownies with fluffy marshmallow swirls and a touch of crunchy peanut butter.
Versatile treat: These brownies shine as a dessert on their own or as a sweet accompaniment to your favorite ice cream.
Marshmallow Peanut Butter Brownies Ingredients
For the Peanut Butter Layer
• Creamy Peanut Butter – a key player in providing that luscious, nutty flavor.
• Powdered Sugar – helps create a smooth, sweet filling without any graininess.
• Unsalted Butter – this adds richness; make sure it’s at room temperature for easy mixing.
• Pinch of Salt – balances the sweetness and enhances the flavors.
For the Brownie Batter
• All-Purpose Flour – gives the brownies structure; measuring properly is key for the perfect texture.
• Salt – a pinch ensures the brownies are perfectly seasoned.
• Baking Powder – adds a bit of lift to make the brownies less dense.
• Large Eggs – essential for binding the ingredients and achieving moisture.
• Granulated Sugar – sweetens the brownies and contributes to that desirable fudgy texture.
• Brown Sugar – adds depth and a hint of caramel flavor.
• Canola Oil – keeps the brownies moist; you can substitute with vegetable oil.
• Pure Vanilla Extract – enhances the overall flavor profile beautifully.
For the Chocolate Mixture
• Unsalted Butter – adds creaminess and richness when melted with the chocolate.
• Bittersweet Chocolate – the star of the show that gives the brownies their deep chocolate flavor; use high quality for best results.
• Dutch Process Cocoa Powder – intensifies the chocolate taste and adds a gorgeous dark color.
For the Marshmallow Swirl
• Store-Bought Marshmallow Fluff – the secret to that fluffy, dreamy texture; feel free to make your own if you’re feeling adventurous!
These Marshmallow Peanut Butter Brownies are not just a dessert; they’re a delightful experience waiting to be created in your kitchen!
How to Make Marshmallow Peanut Butter Brownies
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Mix Ingredients: In a medium bowl, combine the creamy peanut butter, powdered sugar, unsalted butter, vanilla extract, and a pinch of salt. Mix until completely smooth and set aside.
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Preheat Oven: Adjust your oven rack to the middle and preheat to 350ºF (180ºC). Grease a 9 by 13 inch baking pan and line it with a parchment sling for easy removal.
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Whisk Dry Ingredients: In a small bowl, whisk together the all-purpose flour, salt, and baking powder. This step ensures even distribution throughout the brownie batter.
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Combine Wet Ingredients: In another bowl, whisk together the eggs, granulated sugar, brown sugar, canola oil, and the rest of the vanilla extract until well combined and smooth.
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Melt Chocolate and Butter: In a small, heavy-bottom saucepan over low heat, melt together the unsalted butter and bittersweet chocolate. Stir frequently until smooth, then remove from heat and whisk in the Dutch process cocoa powder.
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Combine Mixtures: Add the melted chocolate mixture to the wet ingredients and whisk until smooth. Gently fold in the flour mixture until just combined—be careful not to overmix!
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Layer Batter: Pour the brownie batter into the prepared pan. Dollop the peanut butter filling and marshmallow fluff over the top, alternating between the two. Use the tip of a butter knife to create swirls for a marbled effect.
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Bake Brownies: Bake in the preheated oven until the edges are set, the top starts to crackle, and a toothpick inserted into the center comes out with moist crumbs—about 26 to 32 minutes.
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Cool and Serve: Once done, transfer the pan to a wire rack and let it cool completely. Carefully lift the brownies out using the parchment sling, slice into bars, and serve. Store in an airtight container for up to 2 days.
Optional: Top with a scoop of vanilla ice cream for extra indulgence.
Exact quantities are listed in the recipe card below.
How to Store and Freeze Marshmallow Peanut Butter Brownies
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Room Temperature: Store the brownies in an airtight container at room temperature for up to 2 days to maintain their delicious gooeyness.
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Fridge: If you’d like them to last a bit longer, refrigerate in an airtight container for up to a week. Just be sure to bring them to room temperature before enjoying!
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Freezer: For extended storage, freeze the brownies wrapped tightly in plastic wrap and then in foil. They can last for up to 3 months. Thaw in the fridge overnight before serving.
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Reheating: To enjoy their fudgy texture, warm refrigerated or thawed brownies in the microwave for about 10-15 seconds for a delightful melty experience!
What to Serve with Marshmallow Peanut Butter Brownies?
Elevate your dessert experience with delightful pairings that will make your taste buds dance.
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Vanilla Ice Cream: The creamy and cool nature of vanilla ice cream contrasts beautifully with warm brownies, creating a delightful play of temperatures. A scoop on top makes each bite feel like pure indulgence!
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Coffee: The bold flavor of a rich coffee perfectly complements the sweet chocolate and peanut butter flavors, enhancing every mouthful. Plus, the caffeine kick might just make you want another brownie!
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Chocolate Sauce: Drizzling warm chocolate sauce adds an extra layer of decadence and makes every bite even more irresistible. The luscious richness is a chocolate lover’s dream come true!
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Fresh Berries: Tart raspberries or strawberries offer a refreshing counterpoint to the sweet brownies. The vibrant colors add a touch of elegance and a burst of freshness that brightens up the dessert experience.
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Chopped Nuts: Crispy toasted nuts like walnuts or pecans add a contrasting crunch and deepen the overall flavor profile. They’re not only delicious but add a little something extra to each bite.
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Milk: A classic pairing, a cold glass of milk helps balance the sweetness and richness, and it’s a comforting way to enjoy your brownies. Dip a brownie into the milk for a nostalgic treat!
Indulge in these pairings, and savor the joy that Marshmallow Peanut Butter Brownies can bring to your table!
Make Ahead Options
These Marshmallow Peanut Butter Brownies are perfect for meal prep aficionados! You can prepare the brownie batter up to 24 hours in advance by mixing all the ingredients together and storing it in an airtight container in the refrigerator to maintain freshness. For the peanut butter filling, whip that up too and refrigerate it separately. When you’re ready to bake, simply bring the batter and filling to room temperature (about 30 minutes), layer them in the prepared pan, and swirl in the marshmallow fluff. This way, you save time and still enjoy delicious brownies that are just as mouthwatering as if they were freshly made!
Marshmallow Peanut Butter Brownies Variations
Feel free to make these brownies uniquely yours with these delightful twists and substitutes!
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Nut-Free: Substitute creamy peanut butter with sunflower seed butter for a nut-free version that’s just as creamy and delicious.
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Gluten-Free: Replace all-purpose flour with a gluten-free flour blend to cater to gluten-sensitive friends or family. The taste is still oh-so-good!
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Vegan: Use flax eggs in place of regular eggs and substitute dairy butter with vegan alternatives. Your vegan guests will appreciate the thoughtful touch!
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Spicy Kick: Add a pinch of cayenne pepper or a sprinkle of chili powder to the brownie batter for a surprising, flavorful zing that contrasts beautifully with sweetness.
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Chocolate Lovers: Swap in semi-sweet or milk chocolate for bittersweet chocolate to create a sweeter brownie that caters to those with a sweet tooth.
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Add-Ins Galore: Toss in chocolate chips, chopped nuts, or dried fruit to the brownie batter. These bits bring fun texture and an extra flavor burst to every bite!
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Marshmallow Twist: Instead of store-bought marshmallow fluff, try making homemade marshmallow for a nostalgic touch. It’s a bit more effort but oh, so rewarding!
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Fruity Flavor: Incorporate a layer of fruit preserves or fresh raspberries alongside the peanut butter and fluff. Perfect for adding a tart contrast to the rich flavors!
Explore these variations and feel encouraged to create a version that brings you and your loved ones the most joy!
Helpful Tricks for Marshmallow Peanut Butter Brownies
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Room Temperature Ingredients: Ensure your butter and eggs are at room temperature. This helps them blend smoothly with the other ingredients, giving you a consistent batter.
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Don’t Overmix: When combining the brownie batter, mix until just combined. Overmixing can lead to tough brownies. Aim for a fudgy texture with the Marshmallow Peanut Butter Brownies.
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Cooling Time: Let the brownies cool completely in the pan before lifting them out. This allows them to set properly and makes slicing much easier.
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Check for Doneness: Use a toothpick to test for doneness; it should come out with a few moist crumbs attached, not completely clean. This ensures a gooey center.
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Layering Technique: Alternate dollops of peanut butter and marshmallow fluff evenly across the brownie batter. Creating swirls can enhance both visual appeal and flavor distribution.
Marshmallow Peanut Butter Brownies Recipe FAQs
What type of peanut butter should I use?
Absolutely! For the best flavor and texture, I recommend using creamy peanut butter that’s not too oily. Natural peanut butter can work, too, but make sure it’s well stirred to avoid separating, and it’s best suited for those who love a richer nutty flavor.
How should I store leftover brownies?
Store the brownies in an airtight container at room temperature for up to 2 days. If you want to keep them longer, you can refrigerate them in an airtight container for up to a week. Just be sure to let them come back to room temperature before serving to enjoy that gooey goodness!
Can I freeze Marshmallow Peanut Butter Brownies?
Absolutely! For freezing, wrap each brownie tightly in plastic wrap and then in aluminum foil to prevent freezer burn. You can freeze them for up to 3 months. When you’re ready to enjoy, simply thaw them in the fridge overnight, and they’ll be as delightful as freshly baked!
What should I do if my brownies turn out too cakey?
If your Marshmallow Peanut Butter Brownies turn out too cakey, it’s likely that they were overmixed or baked for too long. To achieve that fudgy texture you crave, make sure to mix the batter until just combined and use a toothpick to check for doneness—it should have some moist crumbs, not completely clean.
Are these brownies safe for people with nut allergies?
If you’re serving someone with nut allergies, be cautious as this recipe contains peanut butter. You can substitute the creamy peanut butter with sunflower seed butter or a nut-free alternative to make a safe and equally delicious treat for those with dietary restrictions.
Can I use homemade marshmallow fluff?
Of course! If you’re up for a little kitchen adventure, making your own marshmallow fluff is an excellent way to amp up the flavor. Simply whip egg whites and sugar until you achieve soft peaks, then gradually add corn syrup and vanilla. This homemade version can add a special touch to your Marshmallow Peanut Butter Brownies!
Irresistible Marshmallow Peanut Butter Brownies to Indulge In
Ingredients
Equipment
Method
- In a medium bowl, combine the creamy peanut butter, powdered sugar, unsalted butter, vanilla extract, and a pinch of salt. Mix until completely smooth and set aside.
- Adjust your oven rack to the middle and preheat to 350ºF (180ºC). Grease a 9 by 13 inch baking pan and line it with a parchment sling for easy removal.
- In a small bowl, whisk together the all-purpose flour, salt, and baking powder.
- In another bowl, whisk together the eggs, granulated sugar, brown sugar, canola oil, and the rest of the vanilla extract until well combined and smooth.
- In a small, heavy-bottom saucepan over low heat, melt together the unsalted butter and bittersweet chocolate. Stir frequently until smooth, then remove from heat and whisk in the Dutch process cocoa powder.
- Add the melted chocolate mixture to the wet ingredients and whisk until smooth. Gently fold in the flour mixture until just combined.
- Pour the brownie batter into the prepared pan. Dollop the peanut butter filling and marshmallow fluff over the top, alternating between the two. Use a butter knife to create swirls for a marbled effect.
- Bake in the preheated oven until the edges are set, about 26 to 32 minutes.
- Once done, transfer the pan to a wire rack and let it cool completely. Carefully lift the brownies out using the parchment sling, slice into bars, and serve.