Fluffernutter Bars
Ingredients
Directions / Instructions
Why You'll Love These Fluffernutter Bars
These Fluffernutter Bars combine everything you love about the classic peanut butter and marshmallow sandwich in an easy-to-make dessert. Every bite is soft, chewy, buttery, and filled with creamy peanut butter, sweet marshmallow fluff, and melty chocolate chips.
Perfect for bake sales, birthday parties, holiday dessert tables, or after-school snacks, these bars come together with simple pantry ingredients and stay soft for days. They're guaranteed to become a family favorite.
Ingredients
For the Bars
- 1 cup unsalted butter, softened
- 1 cup creamy peanut butter
- 1 cup light brown sugar
- 1/2 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 2½ cups all-purpose flour
- 1 teaspoon baking powder
- 1/2 teaspoon baking soda
- 1/2 teaspoon salt
- 1½ cups marshmallow fluff
- 1 cup semi-sweet chocolate chips
- 1/2 cup peanut butter chips (optional)
Instructions
1. Prepare the Pan
Preheat the oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper and lightly grease it.
2. Make the Dough
Beat together the butter, peanut butter, brown sugar, and granulated sugar until light and fluffy. Mix in the eggs one at a time, then add the vanilla extract.
3. Add the Dry Ingredients
In another bowl, whisk together the flour, baking powder, baking soda, and salt. Gradually mix the dry ingredients into the wet ingredients until just combined.
4. Assemble the Bars
Spread about two-thirds of the dough evenly into the prepared pan. Carefully spread the marshmallow fluff over the dough, leaving a small border around the edges. Sprinkle with chocolate chips and peanut butter chips. Drop spoonfuls of the remaining dough over the top.
5. Bake
Bake for 28 to 32 minutes, or until the top is lightly golden brown and the center is just set.
6. Cool
Allow the bars to cool completely in the pan before lifting them out and slicing into squares.
7. Serve
Enjoy at room temperature or slightly warm for extra gooey marshmallow goodness.
Expert Tips
Lightly grease your spoon before spreading the marshmallow fluff to prevent sticking. Don't overbake the bars—they continue setting as they cool. Allow the bars to cool completely before cutting for clean slices. Use full-fat creamy peanut butter rather than natural peanut butter for the best texture.
Storage
Store the bars in an airtight container at room temperature for up to 5 days or refrigerate for up to one week. Freeze individual bars for up to 3 months and thaw at room temperature before serving.
Serving Suggestions
Serve with a cold glass of milk, hot chocolate, coffee, or vanilla ice cream. They're also delicious packed into lunchboxes, served on dessert platters, or enjoyed as an afternoon snack.
Recipe Variations
Use crunchy peanut butter for added texture, replace the chocolate chips with chopped peanut butter cups or mini Reese's Pieces, swirl Nutella into the marshmallow layer, or drizzle melted chocolate over the cooled bars for an extra-decadent finish.
Frequently Asked Questions
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