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Peanut Butter S’mores Sandwich Cookies Recipe

5 from 99 reviews

These Peanut Butter S’mores Sandwich Cookies combine creamy peanut butter cookies with a gooey marshmallow fluff and melted milk chocolate center, creating a delightful twist on classic s’mores. Perfectly balanced with a hint of sweetness and a soft, chewy texture, these cookies are ideal for sharing or indulging in a cozy treat.

Ingredients

Scale

Cookie Dough

  • 1 1/2 cups (250 g) creamy peanut butter
  • 1/2 cup (113 g) unsalted butter, softened
  • 1/2 cup (100 g) granulated sugar
  • 1/2 cup (100 g) light brown sugar, packed
  • 1 large egg (room temperature)
  • 1 tsp vanilla extract
  • 1 1/4 cups (160 g) all-purpose flour
  • 3/4 tsp baking powder
  • 1/4 tsp kosher salt

Filling

  • 1 cup (96 g) marshmallow fluff
  • 1/4 cup (64.5 g) creamy peanut butter, warmed
  • 1/2 cup (84 g) milk chocolate chips

Instructions

  1. Preheat oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper to prevent sticking and aid even baking.
  2. Cream fats and sugars: In a mixing bowl, beat together the creamy peanut butter, softened unsalted butter, granulated sugar, and light brown sugar until the mixture becomes fluffy and smooth, which should take about 2 to 3 minutes. Then add the egg and vanilla extract, and mix well to combine.
  3. Mix dry ingredients: In a separate bowl, whisk together the all-purpose flour, baking powder, and kosher salt to evenly distribute the leavening agent and salt.
  4. Combine wet and dry: Gradually add the dry ingredient mixture into the wet peanut butter mixture. Stir until a soft dough forms, making sure not to overmix.
  5. Shape cookies: Scoop out tablespoon-sized portions of dough and place them about 2 inches apart on the prepared baking sheet. Flatten each dough ball with the back of a fork in a crisscross pattern to ensure even cooking.
  6. Bake cookies: Bake in the preheated oven for 10 to 12 minutes or until the edges turn golden brown. Once baked, let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
  7. Melt chocolate: While cookies cool, melt the milk chocolate chips by microwaving in 20-second intervals, stirring in between, until the chocolate is smooth and fully melted.
  8. Assemble sandwiches: Spread about 1 tablespoon of marshmallow fluff onto the flat side of one cookie, followed by 1 teaspoon of warmed peanut butter, then drizzle or spread some melted chocolate on top.
  9. Top and set: Place a second cookie flat side down over the filling to form a sandwich. Press gently to secure the sandwich. Let the cookies set at room temperature for 10 to 15 minutes, or refrigerate for 10 minutes to help the filling firm up.
  10. Serve and enjoy: Once set, serve the Peanut Butter S’mores Sandwich Cookies fresh and enjoy this sweet, gooey treat!

Notes

  • Using room temperature egg helps the dough come together smoothly.
  • Properly flattening the cookies with a fork creates the classic peanut butter cookie appearance.
  • Warming the peanut butter makes it easier to spread inside the sandwich.
  • If you prefer a firmer filling, chill the assembled sandwiches longer before serving.
  • These cookies can be stored in an airtight container at room temperature for up to 3 days or refrigerated for up to a week.

Keywords: Peanut Butter Cookies, S'mores, Sandwich Cookies, Marshmallow Fluff, Chocolate, Dessert, Baked Cookies