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

Fluffernutter Bars

  • Author: Charlotte
  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Total Time: 35 minutes
  • Yield: About 16 bars 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

Fluffernutter Bars bring together creamy peanut butter, sweet marshmallow fluff, and a buttery base — all in a rich, soft, and indulgent treat!


Ingredients

Scale
  • 1/2 cup (1 stick) unsalted butter, room temperature
  • 1/2 cup creamy peanut butter
  • 1/2 cup brown sugar
  • 1/4 cup granulated sugar
  • 1 large egg
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1 teaspoon baking soda
  • 1/4 teaspoon kosher salt
  • 1/2 cup marshmallow fluff

Instructions

  1. Preheat oven to 350°F (175°C) and grease a 9×9-inch baking pan.
  2. Cream together the butter, peanut butter, brown sugar, and granulated sugar until smooth and fluffy.
  3. Add in the egg and vanilla extract; blend until well combined.
  4. Mix in the flour, baking soda, and kosher salt.
  5. Spread 2/3 of the batter evenly into the prepared pan.
  6. Drop spoonfuls of marshmallow fluff on top of batter and swirl gently.
  7. Drop remaining batter by spoonfuls over fluff and smooth slightly.
  8. Bake for 20-25 minutes or until the center is set. Let cool completely before cutting into bars.

Notes

  • For a fun twist, add chocolate chips or chopped peanut brittle.
  • Fluffernutter bars stay moist and rich for days in an airtight container.
  • Pair with a glass of cold milk for the perfect treat.

Nutrition

  • Serving Size: 1 bar
  • Calories: 220
  • Sugar: 18g
  • Sodium: 150mg
  • Fat: 10g
  • Saturated Fat: 4g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 30g
  • Fiber: 1g
  • Protein: 4g
  • Cholesterol: 20mg

Keywords: Fluffernutter, peanut butter, marshmallow fluff, rich, buttery, bars