Fluffernutter Chocolate Chip Blondies

Peanut butter, marshmallows, and chocolate . . . could these blondies be any better?
This recipe comes from our cute friend Stephanie who blogs over at BackForSeconds.com. She just released her cookbook, Brownies, Blondies, and Bars.

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I love her recipes because they are simple, yet delicious – exactly the kind of recipes that every person loves! And everyrecipe in this book is drool-worthy, so you can’t go wrong. 🙂
This book is loaded with all my favorite things – I love making desserts in a pan because they are so fast to throw together and there are so many fun variations that I can’t wait to try (like Nutella Brownies with a Pretzel Crust and Cinnamon Roll Blondies!). This is definitely a book that you are going to want to check out!

Serves: 28

Fluffernutter Chocolate Chip Blondies

10 minPrep Time

20 minCook Time

30 minTotal Time

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  • 1 cup (2 sticks) unsalted butter, softened
  • 3/4 cup creamy peanut butter
  • 1 cup brown sugar
  • 1/2 cup sugar
  • 2 eggs
  • 1/2 teaspoon salt
  • 1 teaspoon baking soda
  • 2 1/4 cups flour
  • 2 cups semi-sweet chocolate chips
  • 1 1/2 cups mini marshmallows


  1. Preheat oven to 350 degrees F.
  2. Line a 9x13" baking pan with foil, leaving enough room to hang over the edges. Spray lightly with cooking spray.
  3. In a mixing bowl, cream together the butter, peanut butter, and sugars. Add the eggs, one at a time, mixing between each addition. Add salt and baking soda and mix again. Add flour, mixing until just incorporated. Stir in chips and marshmallows.
  4. Spread into the prepared pan. Bake on the center rack for 20-23 minutes or until golden and edges start to pull away from the sides of the pan. It will be slightly jiggly from the marshmallows, but will set up as it cools. Do not overbake.
  5. Allow to cool completely (it will be hard to wait, but I promise it's worth it!) before cutting.

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