Drool Over This 30-Minute Peanut Butter and Marshmallow Fluff Skillet Cookie

skillet cookie
Kailley Lindman/Thrillist
Kailley Lindman/Thrillist

Few flavor combinations conjure up nostalgia the way that peanut butter and Marshmallow Fluff does. Affectionately known by loyalists like me as "Fluffernutter," the ingredients effortlessly strike a balance between sweet and savory, making them prime for sandwiches, cookies, and just about every fathomable edible form in between. Given my recent affinity for cast-iron skillets, I decided to create a single-serving Fluffernutter skillet cookie. The cookie remains crisp along the edge and gooey at the center, is studded with a mix of peanut butter and semisweet chocolate chips, and is finished with swirls of peanut butter and Fluff. For the full effect, top it with a scoop of ice cream and an extra flurry of peanut butter chips.

For more of my cast-iron recipes -- like this raspberry-vanilla bean Dutch baby -- check out my blog or follow me on Instagram (@kailleyskitchen).

skillet cookie
Kailley Lindman/Thrillist

Fluffernutter Skillet Cookie Recipe

Total Time: 30 minutes
Yield: One 6-inch skillet cookie (feeds one exceptionally hungry person or two reasonably hungry people)

  • 3 tablespoons unsalted sweet cream butter, browned
  • 2 tablespoons light brown sugar, packed
  • 1 ½ tablespoons granulated sugar
  • 1 large egg yolk
  • ½ teaspoon pure vanilla extract
  • 5 tablespoons all-purpose flour
  • ¼ teaspoon baking soda
  • ⅛ teaspoon salt
  • ¼ cup peanut butter chips
  • ¼ cup semisweet chocolate chips
  • ¼ cup creamy peanut butter
  • ¼ cup Marshmallow Fluff
  • Preheat oven to 350 degrees F and thoroughly grease a 6-inch cast-iron skillet with butter
  • In a small mixing bowl, whisk together melted butter and sugars until smooth
  • Add egg yolk and vanilla extract and whisk until just combined
  • In a separate small mixing bowl, sift together flower, baking soda, and salt
  • Pour wet ingredients into dry ingredients and stir with a wooden spoon, scraping down the sides of the bowl as necessary, until incorporated
  • Fold in peanut butter chips and chocolate chips
  • Press about ⅔ of the cookie dough into the skillet until a thin layer covers the base of the skillet
  • Use a spoon to place small dollops of Marshmallow Fluff over the dough
  • Crumble bits of remaining dough over the Fluff layer (be sure to let some of the Fluff stay exposed -- this will result in a marbled effect once the cookie bakes)
  • Use a spoon to place small dollops of peanut butter over the dough and Fluff
  • Bake for 12-14 minutes, or until the edges of the cookie start to turn golden brown (the center of the cookie may be slightly under-baked -- it’s better this way! And it will continue to bake through a bit as it cools.)
  • Allow skillet cookie to cool slightly (about 5 minutes) on a wire cooling rack
  • Top with ice cream and enjoy!
skillet cookie
Kailley Lindman/Thrillist

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Kailley Lindman is a contributing recipe developer and writer for Thrillist, as well as a freelance food photographer, food blogger at KailleysKitchen.com, and recovering vegetarian. Follow her at @KailleysKitchen.