Fluffernutter Bars Recipe

Irresistible Fluffernutter Bars Recipe: Sweet & Nutty Bliss

Chocolate and marshmallow crave a delightful dance in these irresistible fluffernutter bars that blend creamy peanut butter with sweet, gooey goodness.

Layers of indulgence stack up with each decadent bite, promising pure bliss for dessert enthusiasts.

The classic combination of marshmallow fluff and peanut butter creates a nostalgic treat that sparks childhood memories.

Soft, rich, and utterly addictive, these bars deliver a symphony of flavors in every single square.

Crafted with simple ingredients, this recipe transforms ordinary pantry staples into an extraordinary dessert sensation.

Prepare to be swept away by the ultimate comfort food that disappears faster than you can slice them.

Surrender to the magic of these irresistible bars and treat yourself to a moment of pure, unapologetic deliciousness.

Fluffernutter Bars: What Makes Them Irresistible

  • Dive into these nostalgic bars that combine the classic peanut butter and marshmallow fluff flavors, creating a dessert that brings back childhood memories and satisfies sweet cravings.
  • Perfect for bakers of all skill levels, this recipe requires simple mixing techniques and basic ingredients, making it an approachable and stress-free baking experience for everyone.
  • Whip up these bars in just a few steps, with minimal prep time and straightforward instructions that guarantee a delicious result without complicated techniques or hard-to-find ingredients.
  • Ideal for potlucks, family gatherings, or casual get-togethers, these bars are sure to be a hit with both kids and adults, offering a crowd-pleasing dessert that's easy to transport and share.

Everything Needed for Fluffernutter Bars

Base Ingredients:
  • Butter: Provides richness and helps bind the bar ingredients together.
  • Brown Sugar, Granulated Sugar: Offer sweetness and contribute to the bar's soft texture.
  • Eggs: Act as a binding agent and help create a tender crumb.
  • Vanilla Extract: Enhances the overall flavor profile of the bars.
  • Peanut Butter: Adds a classic nutty flavor and creamy consistency.
Dry Ingredients:
  • All-Purpose Flour: Forms the structural base of the bars.
  • Salt: Balances the sweetness and enhances the overall flavor.
Frosting Ingredients:
  • Butter, Marshmallow Fluff: Create a creamy and fluffy frosting base.
  • Powdered Sugar: Provides sweetness and helps thicken the frosting.
Topping Ingredient:
  • Chopped Peanuts: Add a crunchy texture and nutty flavor to the bars.

Tools to Make Fluffernutter Bars a Breeze

  • Hand Mixer: Essential for blending wet ingredients smoothly and creating creamy textures.
  • Large Mixing Bowls: Two bowls needed for separating dry and wet ingredients.
  • 9×13-inch Baking Pan: Perfect size for spreading and baking the bar batter evenly.
  • Whisk: Helps combine dry ingredients thoroughly without lumps.
  • Spatula: Great for spreading batter and frosting evenly in the pan.
  • Measuring Cups and Spoons: Crucial for accurate ingredient measurements.
  • Toothpick: Used to check baking doneness by testing cake's center.
  • Knife: Needed for cutting bars into serving portions.

Fluffernutter Bars: Step-by-Step Directions

Step 1: Warm Up the Oven

Fire up your oven to 175C (350F).

Grab a 9×13-inch pan and give it a generous spray with nonstick cooking spray to prevent any sticky situations.

Step 2: Create the Delicious Base

In a large mixing bowl, blend together:
  • Melted butter
  • Brown sugar
  • Granulated sugar

Whip these ingredients with a hand mixer until they’re perfectly combined.

Crack in the eggs and splash of vanilla extract, mixing until silky smooth.

Stir in the peanut butter until the mixture looks creamy and dreamy.

Step 3: Combine Dry Ingredients

Grab another bowl and whisk together flour and salt.

Gently fold the dry ingredients into the wet mixture, stirring just until everything comes together.

Don’t overmix – you want these bars to be tender!

Step 4: Bake to Golden Perfection

Spread the batter evenly into your prepared pan.

Slide into the preheated oven and bake for 25-30 minutes.

You’ll know they’re done when the top turns a beautiful golden color and a toothpick comes out clean when inserted in the center.

Let the bars cool completely – patience is key!

Step 5: Whip Up the Fluffy Frosting

In a large bowl, beat together softened butter and marshmallow fluff until light and fluffy.

Gradually add powdered sugar, mixing between each addition until the frosting is smooth and spreadable.

Step 6: Finish with Flair

Once the bars are completely cool, spread the marshmallow frosting in an even layer.

Sprinkle chopped peanuts on top for a delightful crunch.

Slice into squares and get ready to devour these heavenly treats!

Tips for the Best Fluffernutter Bars Results

  • Use coconut sugar or monk fruit sweetener for a lower glycemic index option that maintains the rich, sweet flavor of the bars.
  • Line the baking pan with parchment paper for easy removal and clean cutting of the bars, ensuring no crumbs are left behind.
  • Mix the peanut butter thoroughly but gently to keep the batter light and avoid overmixing, which can make the bars dense and tough.
  • Let the bars cool completely before frosting to prevent the marshmallow topping from melting and sliding off the surface.
  • Toast the chopped peanuts in a dry skillet before sprinkling to enhance their nutty flavor and add a delightful crunch to the bars.

Tasty Twists to Try with Fluffernutter Bars

  • Gluten-Free Fluffernutter Bars: Swap regular flour with almond flour or gluten-free flour blend for a celiac-friendly version. Maintain the same measurements and baking instructions.
  • Vegan Peanut Butter Marshmallow Bars: Replace eggs with flax eggs, use vegan butter, and select dairy-free marshmallow fluff. Substitute peanut butter with sunflower seed butter for nut-free option.
  • Low-Sugar Fluffernutter Bars: Use monk fruit sweetener instead of brown and granulated sugar. Reduce sugar content while keeping the classic flavor profile. Choose natural peanut butter with no added sugars.

How to Serve Fluffernutter Bars at Any Gathering

  • Sweet Nostalgia Platter: Serve these bars on a vintage-style platter to evoke childhood memories of classic peanut butter and marshmallow sandwiches.
  • Dessert Picnic Delight: Pack these bars in individual wax paper wraps for a perfect outdoor summer treat that travels well and looks adorable.
  • Milk Pairing Magic: Offer cold glasses of whole milk or chocolate milk alongside the bars to complement the rich, sweet flavor profile and create a classic dessert experience.
  • Ice Cream Companion: Top each bar with a small scoop of vanilla or peanut butter ice cream for an extra decadent and indulgent dessert moment.

Storing Fluffernutter Bars the Right Way

  • Store leftovers in an airtight container in the refrigerator for up to 5 days. Wrap bars individually in plastic wrap to prevent drying out and maintain freshness.
  • Carefully place bars in a freezer-safe container, separating layers with parchment paper. Freeze for up to 3 months. Thaw overnight in the refrigerator before serving.
  • Warm individual bars in the microwave for 10-15 seconds for a soft, gooey texture. Alternatively, warm in a preheated oven at 150C (300F) for 5-7 minutes to restore original freshness.
  • Keep bars at room temperature for up to 2 days in a sealed container, away from direct sunlight and heat sources.

FAQs

  • What are the key ingredients for Fluffernutter Bars?

The key ingredients are peanut butter, marshmallow fluff, butter, brown sugar, eggs, vanilla extract, flour, and chopped peanuts.

  • Are Fluffernutter Bars suitable for people with nut allergies?

No, these bars contain peanut butter and chopped peanuts, making them unsafe for individuals with nut allergies.

  • Can I make Fluffernutter Bars gluten-free?

Yes, you can substitute the regular flour with a gluten-free flour blend to make the recipe gluten-free.

  • How do I know when the bars are fully baked?

The bars are done when they turn golden brown and a toothpick inserted in the center comes out clean, which typically takes 25-30 minutes.

Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Fluffernutter Bars Recipe

Fluffernutter Bars Recipe


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.7 from 10 reviews

  • Total Time: 50 minutes
  • Yield: 12 1x

Description

Irresistible fluffernutter bars blend marshmallow and peanut butter in a nostalgic dessert. Sweet layers create a perfect combination of creamy textures that delight taste buds and bring childhood memories to life.


Ingredients

Scale

Main Ingredients:

  • 1 1/2 cups all-purpose flour
  • 3/4 cup creamy peanut butter
  • 2 eggs
  • 1 7-ounce container marshmallow fluff

Sugars:

  • 1 cup brown sugar
  • 1/2 cup granulated sugar
  • 2 cups powdered sugar

Fats and Enhancers:

  • 3/4 cup unsalted butter, melted
  • 1/2 cup unsalted butter, softened
  • 2 teaspoons vanilla extract
  • 1/2 teaspoon salt
  • 1/2 cup chopped peanuts

Instructions

  1. Preheat oven to 175°C (350°F) and prepare a 9×13-inch pan with nonstick cooking spray, ensuring complete coverage.
  2. In a large mixing bowl, cream melted butter with brown and granulated sugars using a hand mixer until well combined and slightly fluffy.
  3. Incorporate eggs and vanilla extract into the sugar mixture, blending thoroughly until smooth and uniform in texture.
  4. Mix in peanut butter until the batter becomes creamy and consistent, eliminating any visible lumps.
  5. In a separate bowl, sift flour and salt together to remove potential clumps and ensure even distribution.
  6. Gradually fold dry ingredients into the wet mixture, stirring gently until just combined to maintain the batter’s delicate texture.
  7. Transfer batter to the prepared pan, spreading evenly with a spatula to create a smooth, level surface.
  8. Bake for 25-30 minutes, or until edges turn golden brown and a toothpick inserted in the center emerges clean.
  9. Remove from oven and allow bars to cool completely at room temperature, which helps set the texture.
  10. For frosting, whip softened butter and marshmallow fluff together until light and airy.
  11. Gradually add powdered sugar, mixing until the frosting becomes smooth and spreadable.
  12. Once bars are completely cooled, generously spread frosting across the entire surface.
  13. Garnish with chopped peanuts for added crunch and visual appeal.
  14. Slice into squares and serve at room temperature.

Notes

  • Swap Peanut Butter for Dietary Needs: Use almond or sunflower seed butter for gluten-free or nut-free variations, ensuring everyone can enjoy these delectable bars.
  • Control Sweetness Levels: Reduce powdered sugar in frosting by half for a less sweet version, allowing the rich peanut butter flavor to shine through.
  • Enhance Texture Tip: Slightly underbake bars for extra gooey centers, creating a more decadent dessert experience that melts in your mouth.
  • Storage Hack: Refrigerate bars for firmer frosting and easier cutting, keeping them fresh for up to 5 days in an airtight container.
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Category: Desserts, Snacks
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 12
  • Calories: 339
  • Sugar: 27 g
  • Sodium: 147 mg
  • Fat: 16 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 10 g
  • Trans Fat: 0 g
  • Carbohydrates: 43 g
  • Fiber: 1 g
  • Protein: 4 g
  • Cholesterol: 35 mg
Clara Thompson

Clara Thompson

Recipe Developer & Food Educator

Expertise

Plant-based and vegetarian recipe development, Nutritional analysis and meal planning, Culinary education and workshop facilitation, Content writing with a focus on healthy living​

Education

Diploma in Culinary Arts, Mt. San Jacinto College, CA
Focus: Comprehensive culinary training with an emphasis on sustainable cooking practices.

Certificate in Nutrition and Healthy Living, Cornell University (Online Program)
Focus: Understanding the principles of nutrition to create balanced and health-conscious recipes.


Clara lives where fresh ideas and fresh ingredients meet. She pairs her culinary know-how with her passion for healthy, planet-friendly cooking.
For Clara, good food should taste great, nourish your body, and feel easy to make. Her recipes highlight whole foods, colorful produce, and a deep respect for seasonal eating.

Leave a Reply

Your email address will not be published. Required fields are marked *

Recipe rating 5 Stars 4 Stars 3 Stars 2 Stars 1 Star