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Two peanut butter sandwich cookies filled with chocolate and marshmallow fluff on a white plate.
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Peanut Butter S'mores Sandwich Cookies

Prep Time20 minutes
Cook Time10 minutes
Total Time45 minutes
Servings: 12 servings
Calories: 320kcal

Ingredients

  • 1/2 cup creamy peanut butter
  • 1/2 cup unsalted butter, softened
  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar, packed
  • 1 large eg g
  • 1 teaspoon vanilla extract
  • 1 1/4 cups all -purpose flour
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/4 teaspoon sal t
  • 4 ounces semi -sweet chocolate, chopped
  • 1/4 cup heavy cream
  • 7 ounces marshmallow fluff

Instructions

  • Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  • Cream together butter, peanut butter, granulated sugar, and brown sugar until light and fluffy.
  • Beat in the egg and vanilla extract until well incorporated.
  • In a separate bowl, whisk together flour, baking soda, baking powder, and salt.
  • Gradually add dry ingredients to the wet ingredients, mixing until just combined.
  • Roll dough into 24 uniform balls and place on baking sheets, flattening slightly with a fork in a crosshatch pattern.
  • Bake for 8 to 10 minutes or until edges are lightly golden; cool completely on a wire rack.
  • Prepare ganache by heating heavy cream until simmering, pouring over chopped chocolate, and stirring until smooth after 2 minutes of resting.
  • Spread a layer of thickened chocolate ganache on the bottom side of 12 cooled cookies.
  • Spread marshmallow fluff on the bottom side of the remaining 12 cookies and press the halves together to form sandwiches.