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Fluffernutter Bars Recipe

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Fluffernutter Bars combine the classic flavors of peanut butter and marshmallow fluff in a chewy, buttery cookie bar. These delightful treats feature a soft peanut butter base topped with a creamy peanut butter frosting and a layer of sweet marshmallow fluff, making for a nostalgic and irresistible dessert perfect for any occasion.

Ingredients

Scale

For the Bar Base

  • 2 1/2 cups all purpose flour
  • 1/2 teaspoon baking soda
  • 1 teaspoon salt
  • 3/4 cup unsalted butter, at room temperature
  • 3/4 cup smooth peanut butter
  • 1/2 cup granulated sugar
  • 1 cup packed light brown sugar
  • 2 large eggs, at room temperature
  • 2 teaspoons vanilla extract

For the Peanut Butter Filling

  • 1/2 cup smooth peanut butter
  • 3 tablespoons unsalted butter, at room temperature
  • 1 1/2 cups sifted powdered sugar
  • 3 tablespoons heavy cream, divided
  • 1/2 teaspoon vanilla extract

For the Topping

  • 1 (7 ounce) jar marshmallow fluff

Instructions

  1. Preheat Oven and Prepare Pan: Preheat your oven to 350°F (175°C). Grease a 9×9 inch baking pan and line it with parchment paper, leaving an overhang on the sides to make it easier to remove the bars later.
  2. Mix Dry Ingredients: In a medium bowl, whisk together the all purpose flour, baking soda, and salt. Set this mixture aside for later incorporation.
  3. Cream Wet Ingredients: In a large bowl, use an electric mixer to cream together the room temperature unsalted butter, smooth peanut butter, granulated sugar, and light brown sugar until the mixture is light and fluffy, about 2 to 3 minutes. This aerates the mixture and ensures a tender texture.
  4. Add Eggs and Vanilla: Add the eggs one at a time, beating well after each addition to ensure they are fully incorporated. Stir in the vanilla extract for flavor.
  5. Combine the Batter: Gradually add the dry flour mixture to the wet ingredients, mixing just until combined. Avoid overmixing to keep the bars tender.
  6. Bake the Bars: Press the dough evenly into the prepared baking pan. Place in the oven and bake for 25 to 30 minutes, or until the edges are lightly browned and a toothpick inserted into the center comes out clean. Remove from the oven and allow to cool slightly.
  7. Prepare Peanut Butter Filling: While the bars cool, prepare the filling. In a medium bowl, beat together the remaining peanut butter and unsalted butter until smooth. Add sifted powdered sugar, vanilla extract, and 2 tablespoons of heavy cream. Beat until smooth and creamy. If the filling is too thick, add the remaining tablespoon of heavy cream to achieve a spreadable consistency.
  8. Spread Peanut Butter Filling: Using a spatula or the back of a spoon, evenly spread the peanut butter filling over the warm bars in the pan to create a smooth layer.
  9. Top with Marshmallow Fluff: Warm the marshmallow fluff in the microwave for about 10-15 seconds to soften it, making it easier to spread. Carefully spread the marshmallow fluff over the peanut butter layer, covering it completely.
  10. Cool and Serve: Allow the assembled bars to cool completely in the pan at room temperature. Once cooled, use the parchment paper overhang to lift the bars out of the pan and slice into squares. Serve at room temperature for the best texture and flavor.

Notes

  • You can substitute creamy peanut butter with natural peanut butter, but ensure it is well stirred to combine the oils.
  • For easier spreading, make sure the marshmallow fluff is slightly warmed before applying.
  • Store the bars in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
  • These bars can be cut smaller for bite-sized treats perfect for parties or lunchboxes.
  • Use parchment paper to easily lift the bars out without damaging the edges.

Keywords: Fluffernutter bars, peanut butter bars, marshmallow fluff dessert, baked peanut butter bars, easy dessert recipe

Find it online: https://tastewithamy.com/fluffernutter-bars-recipe/