Marshmallow Peanut Butter Brownies: Your New Favorite Treat

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Marshmallow Peanut Butter Brownies

As I stirred the rich, chocolatey batter and caught the scent of melting marshmallows wafting through the kitchen, a wave of nostalgia washed over me. There’s something undeniably comforting about homemade sweets that transport us back to childhood moments, where each bite feels like a warm hug. This recipe for Marshmallow Peanut Butter Brownies captures that essence with its fudgy base and delightful, gooey layers of marshmallow fluff and creamy peanut butter. Not only are these brownies a crowd-pleaser for any gathering, but they also come together effortlessly, making them perfect for weeknight cravings or weekend treats. Whether you’re a seasoned baker or just stepping into the world of desserts, these brownies promise satisfaction with every bite. Ready to indulge in a slice of nostalgia? Let’s dive into the recipe together!

Why are these brownies so irresistible?

Decadent Flavors: ** Experience** the delightful fusion of rich chocolate, creamy peanut butter, and sweet marshmallow, making each bite a flavor explosion!

Effortless Baking: ** The** process is simple, perfect even for novice bakers; you’ll have these brownies whipped up in no time.

Nostalgic Appeal: Transport yourself back to childhood with this comforting treat that evokes sweet memories and smiles.

Crowd Favorite: Bring these brownies to your next gathering or casual picnic; they’re sure to be the star of the show, just like Holiday Gooey Butter cookies!

Versatile Variations: Switch it up by using chunky peanut butter, or even try almond butter for an enticing twist. Whether enjoyed alone or paired with vanilla ice cream, these brownies are your new favorite go-to!

Marshmallow Peanut Butter Brownies Ingredients

• Dive into the delightful world of Marshmallow Peanut Butter Brownies with this easy ingredient guide!

For the Peanut Butter Filling

  • Creamy Peanut Butter – Adds flavor and richness to the filling; for a nutty twist, try almond butter.
  • Powdered Sugar – Sweetens the peanut butter filling and stabilizes it; granulated sugar works in a pinch, though it might change the texture slightly.
  • Unsalted Butter – Provides moisture and richness; using salted butter may shift the flavor balance.

For the Brownie Base

  • All-Purpose Flour – Gives structure to the brownies; swap for a gluten-free 1:1 flour blend for a gluten-free version.
  • Salt – Enhances flavor; kosher salt is preferred for a cleaner taste.
  • Baking Powder – Leavens the brownies; don’t exceed the amount to avoid bitterness.
  • Large Eggs – Moisture and binding agents; ensure they are at room temperature for better emulsification.
  • Granulated Sugar – Sweetens the brownie mix; light brown sugar adds moisture and depth.
  • Brown Sugar – Adds moisture and chewiness; pack it tightly for accurate measurement.
  • Canola Oil – Contributes to the fudgy texture; vegetable oil is a suitable substitute.
  • Pure Vanilla Extract – Introduces decadence; opt for quality vanilla for the best flavor.
  • Unsalted Butter (for brownies) – Adds richness; best when melted with chocolate.
  • Bittersweet Chocolate – Provides deep chocolate flavor; semi-sweet chocolate can be used as an alternative.
  • Dutch Process Cocoa Powder – Enhances chocolate flavor and color; if unavailable, use natural cocoa powder in equal measure.
  • Store-Bought Marshmallow Fluff – Contributes to the texture and sweetness; homemade marshmallow can replace it but requires extra time.

Step‑by‑Step Instructions for Marshmallow Peanut Butter Brownies

Step 1: Prepare Peanut Butter Filling
In a medium bowl, blend together 1 cup of creamy peanut butter, 1 cup of powdered sugar, ½ cup of unsalted butter, and a pinch of salt using a hand mixer. Mix until the mixture is silky and well-combined, approximately 2-3 minutes. This delightful filling will add a creamy layer to your Marshmallow Peanut Butter Brownies.

Step 2: Preheat Oven
Adjust your oven rack to the center position and preheat the oven to 350°F (180°C). While the oven is warming, grease a 9×13 inch baking pan with cooking spray or butter, and line it with a parchment sling, allowing the edges to hang over the sides for easy removal. This ensures the perfect base for your brownies.

Step 3: Mix Dry Ingredients
In a large mixing bowl, whisk together 1 cup of all-purpose flour, ½ teaspoon of salt, and 1 teaspoon of baking powder until evenly combined. This dry mixture will provide the structure for your brownies. Set it aside while you whip together the wet ingredients to keep the process flowing smoothly.

Step 4: Combine Wet Ingredients
In another large bowl, whisk together 3 large eggs, ½ cup granulated sugar, ½ cup brown sugar, ⅓ cup of canola oil, and 1 teaspoon of pure vanilla extract until smooth and creamy, roughly 2 minutes. This mixture’s glossy appearance indicates that it’s well combined and ready to merge with the chocolate base.

Step 5: Melt Butter and Chocolate
In a saucepan over low heat, combine ½ cup of unsalted butter and 8 ounces of chopped bittersweet chocolate, stirring gently until melted and smooth, about 5 minutes. Off the heat, whisk in ⅓ cup of Dutch process cocoa powder until fully integrated, providing that rich chocolate flavor for your Marshmallow Peanut Butter Brownies.

Step 6: Combine All
Pour the melted chocolate mixture into the bowl with the wet ingredients, mixing thoroughly until no streaks remain. Carefully fold in the dry ingredients using a spatula, being cautious not to overmix. The batter should be just combined, resulting in a rich, fudgy consistency that’s ready for the next step.

Step 7: Layer Ingredients in Pan
Pour the brownie batter into the prepared pan, smoothing it out evenly with a spatula. Dollop the peanut butter filling over the top, followed by generous spoonfuls of store-bought marshmallow fluff. Using a knife, gently swirl the fillings into the brownie batter, creating a beautiful marbled effect while maintaining distinct layers.

Step 8: Bake
Place the pan in the preheated oven and bake for 26-32 minutes, or until the sides appear set and a toothpick inserted into the center comes out with moist crumbs. The aroma of chocolate and marshmallow will fill your kitchen, signaling that your Marshmallow Peanut Butter Brownies are almost ready!

Step 9: Cool and Serve
Once baked, remove the brownies from the oven and let them cool completely on a wire rack for at least 30 minutes. Once cool, use the parchment sling to lift the brownies out of the pan and cut them into bars. The combination of fudgy brownie, creamy peanut butter, and sweet marshmallow is now ready to be savored!

Marshmallow Peanut Butter Brownies Variations

Feel free to get creative with your Marshmallow Peanut Butter Brownies by exploring these delightful variations that will elevate your dessert experience.

  • Chunky Peanut Butter: Swap out creamy peanut butter for chunky for added texture and a nutty crunch. Each bite will offer a fun twist and a hearty flavor.

  • Nut-Free Option: Use sunflower seed butter or tahini instead of peanut butter to create delicious, nut-free brownies. They’ll be just as rich and satisfying!

  • Flavored Extracts: Experiment with different extracts like almond or hazelnut to add a unique flavor twist. A splash can completely transform the profile of your brownies.

  • Chocolate Chips Galore: Mix in some semi-sweet or white chocolate chips into the batter for extra chocolatey goodness. The melty morsels will make every bite just a bit more indulgent.

  • Spicy Kick: If you’re feeling adventurous, add a pinch of cayenne pepper or red pepper flakes for a surprising heat that complements the sweetness. It’s a bold twist that some will love!

  • S’mores Style: Top your brownies with crushed graham crackers before adding marshmallow fluff for a sweet s’mores vibe. Who could resist that campfire nostalgia?

  • Coffee Infusion: Add a tablespoon of espresso powder to the brownie batter for a subtle coffee flavor that enhances the chocolate. It’s a sophisticated upgrade that chocolate lovers will adore.

  • Swirl in the Swirls: Alternate the layering by swirling in some caramel sauce along with the marshmallow fluff for an extra gooey experience. The combination of flavors is simply divine!

These variations ensure that your Marshmallow Peanut Butter Brownies are never boring! Why not make a batch for your next gathering? And if you’re in the mood for more delicious baking, don’t forget to check out these Chocolate Marshmallow Swirl cookies or whip up some Homemade Danish Butter treats!

How to Store and Freeze Marshmallow Peanut Butter Brownies

Room Temperature: Store brownies in an airtight container at room temperature for up to 2 days. This keeps them soft and fresh, making them perfect for snacking.

Fridge: For extended freshness, refrigerate the brownies for an additional 2 to 3 days. Make sure they are in an airtight container to avoid drying out or absorbing odors.

Freezer: Freeze brownies for up to 3 months. Wrap them individually in plastic wrap, then place them in a freezer-safe bag. Thaw overnight in the fridge before enjoying.

Reheating: Reheat brownies in the microwave for 10-15 seconds for a warm, gooey treat, perfect for serving with a scoop of ice cream!

Expert Tips for Marshmallow Peanut Butter Brownies

  • Preheat Perfectly: Always preheat your oven to ensure even baking; a hot oven is key to achieving that luscious, fudgy texture!

  • Work with Warm Fluff: Warm store-bought marshmallow fluff in the microwave briefly to make it easier to dollop and swirl into your brownie batter.

  • Gentle Swirling: Be gentle when swirling the fillings. This maintains beautiful, distinct layers in your Marshmallow Peanut Butter Brownies for that inviting visual appeal.

  • Room Temperature Eggs: Using room temperature eggs helps your batter emulsify better, contributing to a smoother, richer brownie base.

  • Don’t Overmix: When combining the dry and wet ingredients, mix just until combined. Overmixing can lead to tough brownies; you want a fudgy delight!

Make Ahead Options

These Marshmallow Peanut Butter Brownies are perfect for meal prep enthusiasts! You can prepare the peanut butter filling and layer the brownie batter up to 24 hours in advance. Simply mix the filling ingredients (creamy peanut butter, powdered sugar, unsalted butter, and salt) and refrigerate it in an airtight container. The brownie batter can also be mixed and stored but avoid adding the marshmallow fluff until you’re ready to bake to maintain its texture. When you’re ready to bake, simply layer the peanut butter filling into your chilled batter, dollop with marshmallow fluff, and swirl before baking. You’ll have delicious, freshly baked brownies with minimal effort!

What to Serve with Marshmallow Peanut Butter Brownies

Indulging in these mouthwatering treats opens the door to a feast of flavors, creating the perfect opportunity to build a delightful meal.

  • Vanilla Ice Cream: A classic pairing that balances the richness of the brownies, providing a cool and creamy contrast. Warm brownie and cold ice cream is pure bliss!

  • Chocolate Fudge Sauce: Drizzling warm chocolate sauce enhances the decadence, adding extra layers of chocolatey goodness to every bite.

  • Whipped Cream: Light and airy, whipped cream complements the fudgy texture while adding a touch of elegance. Top your brownies for an inviting dessert presentation.

  • Fresh Berries: Light and tart, strawberries or raspberries cut through the sweetness, providing a refreshing contrast that elevates the dessert experience.

  • Nutty Trail Mix: Serve alongside for a delightful textural contrast and a nutty crunch that complements the peanut butter flavors perfectly.

  • Coffee or Espresso: A warm cup enhances the flavors of chocolate and peanut butter, creating a comforting and inviting pairing. Sipping while enjoying your brownies is a cozy moment!

  • Milk or Almond Milk: A tall glass of cold milk is a timeless match, perfect for washing down the delicious sweetness of the brownies while leaving you utterly satisfied.

  • Caramel Sauce: A drizzle of rich caramel adds a cozy warmth and sweetness, perfectly enhancing the flavors of your brownies for added luxury.

  • Chocolate Chip Cookies: For those who can’t choose between treats, mini chocolate chip cookies create a dessert platter that pleases everyone’s sweet tooth!

  • Hot Chocolate: Enjoy a warm mug of rich hot chocolate for an indulgent experience, perfect for cozy evenings; strip away the chill while you savor each bite!


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Marshmallow Peanut Butter Brownies Recipe FAQs

What type of peanut butter is best for the filling?
I recommend using creamy peanut butter for a smooth and rich filling. If you prefer a bit of texture, chunky peanut butter is a delightful alternative. For those with nut allergies or seeking a different flavor, almond butter or sunflower seed butter also work beautifully!

How should I store leftover brownies?
Store your Marshmallow Peanut Butter Brownies in an airtight container at room temperature for up to 2 days. If you want to keep them fresh for a longer time, refrigerate them for 2-3 additional days. Just ensure the container is airtight to prevent them from drying out.

Can I freeze these brownies? How?
Absolutely! To freeze, individually wrap each brownie in plastic wrap and place them in a labeled freezer-safe bag. They can be frozen for up to 3 months. When you’re ready to enjoy, thaw them overnight in the refrigerator and then warm them in the microwave for 10-15 seconds to restore that fudgy deliciousness.

What if my brownies are too crumbly?
If your brownies turn out too crumbly, it might be due to overbaking or not enough moist ingredients. Next time, try checking for doneness a couple of minutes early. The toothpick test should yield moist crumbs rather than a clean pick, ensuring they stay fudgy and delicious!

Are these brownies suitable for pets or those with allergies?
While these Marshmallow Peanut Butter Brownies are heavenly for humans, they’re not suitable for pets, particularly dogs, due to the chocolate content, which is toxic to them. Additionally, be cautious of nut allergies when serving; offering alternative butters can accommodate those with peanut allergies.

Marshmallow Peanut Butter Brownies

Marshmallow Peanut Butter Brownies: Your New Favorite Treat

Indulge in these Marshmallow Peanut Butter Brownies—a nostalgic treat of gooey marshmallow and creamy peanut butter, perfect for any occasion.
Prep Time 15 minutes
Cook Time 30 minutes
Cooling Time 30 minutes
Total Time 1 hour 15 minutes
Servings: 12 bars
Course: Dessert
Cuisine: American
Calories: 350

Ingredients
  

For the Peanut Butter Filling
  • 1 cup creamy peanut butter For a nutty twist, try almond butter.
  • 1 cup powdered sugar Granulated sugar works in a pinch, though it might change the texture slightly.
  • ½ cup unsalted butter Using salted butter may shift the flavor balance.
  • a pinch salt
For the Brownie Base
  • 1 cup all-purpose flour Swap for a gluten-free 1:1 flour blend for a gluten-free version.
  • ½ teaspoon salt Kosher salt is preferred for a cleaner taste.
  • 1 teaspoon baking powder Don't exceed the amount to avoid bitterness.
  • 3 large eggs Ensure they are at room temperature for better emulsification.
  • ½ cup granulated sugar Light brown sugar adds moisture and depth.
  • ½ cup brown sugar Pack it tightly for accurate measurement.
  • cup canola oil Vegetable oil is a suitable substitute.
  • 1 teaspoon pure vanilla extract Opt for quality vanilla for the best flavor.
  • ½ cup unsalted butter (for brownies) Best when melted with chocolate.
  • 8 ounces bittersweet chocolate Semi-sweet chocolate can be used as an alternative.
  • cup Dutch process cocoa powder If unavailable, use natural cocoa powder in equal measure.
  • 1 cup store-bought marshmallow fluff Homemade marshmallow can replace it but requires extra time.

Equipment

  • 9x13 inch baking pan
  • medium bowl
  • large mixing bowl
  • Hand Mixer
  • Spatula
  • Saucepan

Method
 

Step-by-Step Instructions
  1. In a medium bowl, blend together peanut butter, powdered sugar, unsalted butter, and a pinch of salt using a hand mixer until silky and well-combined, approximately 2-3 minutes.
  2. Adjust your oven rack to the center position and preheat the oven to 350°F (180°C). Grease a 9x13 inch baking pan with cooking spray or butter, and line it with a parchment sling.
  3. In a large mixing bowl, whisk together flour, salt, and baking powder until evenly combined. Set aside.
  4. In another large bowl, whisk together eggs, granulated sugar, brown sugar, canola oil, and vanilla extract until smooth and creamy, roughly 2 minutes.
  5. In a saucepan over low heat, combine unsalted butter and chopped bittersweet chocolate, stirring until melted and smooth, about 5 minutes. Whisk in cocoa powder off the heat.
  6. Pour the melted chocolate mixture into the bowl with the wet ingredients, mixing thoroughly until no streaks remain. Fold in the dry ingredients.
  7. Pour the brownie batter into the prepared pan, dollop the peanut butter filling over the top, and spoon marshmallow fluff, swirling gently.
  8. Place the pan in the preheated oven and bake for 26-32 minutes, until sides are set and a toothpick comes out with moist crumbs.
  9. Once baked, let them cool completely on a wire rack for at least 30 minutes, then cut into bars.

Nutrition

Serving: 1barCalories: 350kcalCarbohydrates: 45gProtein: 5gFat: 18gSaturated Fat: 8gPolyunsaturated Fat: 5gMonounsaturated Fat: 4gCholesterol: 40mgSodium: 200mgPotassium: 150mgFiber: 2gSugar: 30gVitamin A: 5IUCalcium: 4mgIron: 8mg

Notes

These brownies can be stored at room temperature for up to 2 days or refrigerated for an additional 2 to 3 days. They can also be frozen for up to 3 months.

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