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Home » Recipe Index » Irresistible Fluffernutter Bars: A Sweet Nostalgic Treat

Irresistible Fluffernutter Bars: A Sweet Nostalgic Treat

May 15, 2025 by Amanda

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Fluffernutter Bars are like a sweet hug from your childhood, combining the nostalgic flavors of peanut butter and marshmallow fluff in every delectable bite. Imagine sinking your teeth into a chewy, gooey layer of deliciousness that tastes like a campfire memory wrapped in a blanket of sweetness. You can practically hear the laughter and feel the warmth of summer days as these treats transport you back to carefree afternoons with friends.

There’s something magical about sharing Fluffernutter Bars at gatherings or family movie nights. They spark joy and ignite laughter, reminding us of simpler times when all we needed was a sweet snack to brighten our day. Whether you’re indulging solo or sharing with friends, these bars promise an explosion of flavors that will leave everyone reaching for seconds—and maybe even thirds.

Why You'll Love This Recipe

  • Fluffernutter Bars are quick to prepare, making them perfect for last-minute cravings.
  • Their rich flavors and delightful textures will impress anyone who tries them.
  • The bars look stunning on any dessert table, drawing eyes with their inviting layers.
  • They’re versatile enough for any occasion, from casual snacks to festive gatherings.

Ingredients for Fluffernutter Bars

Here’s what you’ll need to make this delicious dish:

  • Granulated Sugar: This sweetener is essential for balancing flavors in your bars and creating that irresistible gooeyness.
  • Brown Sugar: Adds depth and moisture; it’s the secret weapon for achieving soft and chewy texture.
  • All-Purpose Flour: A staple in baking, this provides structure to your bars while allowing them to remain tender.
  • Baking Powder: This leavening agent helps your bars rise just enough without making them too airy.
  • Salt: A pinch enhances flavor and balances the sweetness of the sugars.
  • Unsalted Butter: Softened butter adds richness while helping achieve that melt-in-your-mouth texture.
  • Peanut Butter: Creamy or chunky—your choice! This delicious spread is the star ingredient providing flavor and creaminess.
  • Marshmallow Fluff: This gooey goodness gives your bars that classic fluffernutter taste; it’s a must-have!

The full ingredients list, including measurements, is provided in the recipe card directly below.

Recipe preparation

How to Make Fluffernutter Bars

Follow these simple steps to prepare this delicious dish:

Step 1: Preheat Your Oven

Preheat your oven to 350°F (175°C). Grease a baking dish (9×9 inches works beautifully) with nonstick spray or line it with parchment paper for easy removal.

Step 2: Mix Your Sugars

In a large mixing bowl, combine granulated sugar, brown sugar, and softened butter. Beat them together until creamy and smooth—this is where the magic begins!

Step 3: Add Peanut Butter

Stir in the peanut butter until well combined. It should be creamy and luscious, looking like something out of a food commercial—oh-so-satisfying!

Step 4: Incorporate Dry Ingredients

In another bowl, whisk together all-purpose flour, baking powder, and salt. Gradually add this dry mixture into your peanut butter blend until just combined—don’t overmix!

Step 5: Layer Marshmallow Fluff

Spread half of your batter evenly into the prepared baking dish. Dollop marshmallow fluff over the top—don’t be shy now! Spread it out evenly before topping it off with the remaining batter.

Step 6: Bake & Cool

Bake for about 25-30 minutes or until golden brown on top. Let them cool completely in the pan before cutting into squares (if you can resist not diving right in!).

Transfer to plates and enjoy these decadent treats warm or at room temperature for the perfect finishing touch—just don’t forget to save some for later!

You Must Know

  • Fluffernutter Bars are a delightful twist on the classic sandwich, combining marshmallow fluff, peanut butter, and graham crackers.
  • This recipe is not only fun to make but also brings back sweet childhood memories.
  • Perfect for parties or a cozy night in, these bars will surely be a hit!

Perfecting the Cooking Process

Start by preheating your oven and preparing your baking pan. Mix the peanut butter and fluff together before layering it on the graham cracker base. Bake until golden, then cool completely before slicing into perfect squares.

Add Your Touch

Feel free to swap out creamy peanut butter for crunchy for an extra texture. You can also add chocolate chips or drizzle melted chocolate on top for a decadent twist. Get creative and make these bars your own!

Storing & Reheating

Store Fluffernutter Bars in an airtight container at room temperature for up to a week or refrigerate for longer freshness. If you prefer them warm, pop them in the microwave for about 10 seconds before serving.

Chef's Helpful Tips

  • Make sure your peanut butter is at room temperature; this ensures easy mixing with the marshmallow fluff.

  • For an extra gooey treat, allow the bars to cool slightly before cutting them into squares.

  • Use parchment paper in your baking pan for easy cleanup and to prevent sticking.

I remember the first time I made Fluffernutter Bars for a picnic; they vanished faster than I could say “marshmallow.” Friends kept asking for more, and I ended up making a second batch right there!

FAQs :

What are Fluffernutter Bars?

Fluffernutter Bars are a delicious treat that combines the classic flavors of peanut butter and marshmallow fluff, layered on top of a soft, chewy base. These bars are easy to make and perfect for any occasion. You can customize them by adding chocolate chips or nuts for an extra crunch. They make a great dessert option for parties, family gatherings, or simply as an indulgent snack at home.

How do I store Fluffernutter Bars?

To keep your Fluffernutter Bars fresh, store them in an airtight container at room temperature for up to five days. If you want to preserve their flavor longer, you can refrigerate them for up to a week. For longer storage, consider freezing the bars. Wrap them tightly in plastic wrap and place them in a freezer-safe container. When ready to enjoy, let them thaw at room temperature before serving.

Can I make Fluffernutter Bars vegan?

Yes! You can easily make vegan Fluffernutter Bars by using plant-based alternatives. Substitute regular peanut butter with natural peanut butter that contains no animal products. Use vegan marshmallow fluff or make your own using aquafaba and sugar as a gelling agent. For the base, use flour and plant-based butter for a delicious vegan treat that everyone will love.

How can I enhance the flavor of my Fluffernutter Bars?

You can enhance the flavor of your Fluffernutter Bars by adding ingredients like chocolate chips, crushed graham crackers, or even a sprinkle of sea salt on top. Feel free to experiment with different nut butters like almond or cashew for unique twists. Drizzling melted chocolate over the top before cutting can also elevate these bars into gourmet treats that will impress your guests.

Conclusion for Fluffernutter Bars :

Fluffernutter Bars are a delightful combination of peanut butter and marshmallow fluff that offers a simple yet satisfying dessert. With easy preparation and customizable options, these bars cater to various taste preferences, including vegan choices. Storing them properly ensures their freshness, making them perfect for any occasion or spontaneous cravings. Whether enjoyed at parties or as a sweet snack at home, Fluffernutter Bars are sure to please everyone who tries them.

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Fluffernutter Bars

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Fluffernutter Bars are a delightful treat that brings together the creamy richness of peanut butter and the sweet, gooey goodness of marshmallow fluff. Each bite transports you to carefree summer days filled with joy and laughter. Perfect for gatherings or cozy nights in, these bars are quick to prepare and even quicker to disappear from your dessert table.

  • Author: Amanda
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Total Time: 45 minutes
  • Yield: Approximately 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 1 cup granulated sugar
  • 1 cup brown sugar, packed
  • 1 ½ cups all-purpose flour
  • 1 tsp baking powder
  • ½ tsp salt
  • ½ cup unsalted butter, softened
  • 1 cup creamy or chunky peanut butter
  • 1 cup marshmallow fluff

Instructions

  1. Preheat your oven to 350°F (175°C) and grease a 9×9 inch baking dish.
  2. In a large bowl, beat together granulated sugar, brown sugar, and softened butter until creamy.
  3. Mix in the peanut butter until fully combined.
  4. In another bowl, whisk together flour, baking powder, and salt; gradually add to the peanut butter mixture until just combined.
  5. Spread half of the batter in the prepared dish and dollop marshmallow fluff on top; spread remaining batter over fluff.
  6. Bake for 25-30 minutes until golden brown; let cool completely before cutting into squares.

Nutrition

  • Serving Size: 1 serving
  • Calories: 250
  • Sugar: 22g
  • Sodium: 150mg
  • Fat: 11g
  • Saturated Fat: 4g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 35g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 15mg

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