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Peanut Butter S’mores Sandwich Cookies

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  • Author: Sue
  • Prep Time: 20 minutes
  • Cook Time: 8–10 minutes per batch
  • Total Time: ~30 minutes
  • Yield: 12–16 sandwich cookies
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These Peanut Butter S’mores Sandwich Cookies are a rich, gooey upgrade to the classic campfire treat—featuring soft peanut butter cookies stuffed with melty chocolate and toasted marshmallow. Whether you’re baking for a party or indulging your sweet tooth, these over-the-top cookies combine everything you love about s’mores in a handheld, cozy dessert that’s perfect year-round.


Ingredients

  • For the Peanut Butter Cookies:
  • ½ cup creamy peanut butter
  • ½ cup unsalted butter, softened
  • ½ cup brown sugar
  • ¼ cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • 1 ¼ cups all-purpose flour
  • ½ tsp baking soda
  • ¼ tsp salt
  • For the Filling:
  • Large marshmallows or marshmallow creme
  • Milk chocolate bars, chunks, or chocolate chips
  • Optional: extra melted chocolate for drizzling

Instructions

  1. Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
  2. In a large bowl, cream peanut butter, butter, brown sugar, and granulated sugar until light and fluffy.
  3. Beat in egg and vanilla until smooth.
  4. Add flour, baking soda, and salt. Mix until just combined.
  5. Scoop dough into small balls (about 1 tbsp each), place on baking sheets, and gently flatten.
  6. Bake for 8–10 minutes until golden at the edges. Cool completely on wire racks.
  7. To assemble, melt chocolate or break chocolate bars into squares. Toast marshmallows or gently warm marshmallow creme.
  8. Place a piece of chocolate and marshmallow between two cookies. Press together to create a sandwich.
  9. Warm briefly in the microwave if needed to melt everything together. Serve warm or at room temperature.

Notes

  • Roll dough balls in sugar before baking for a crackly finish.
  • Use dark chocolate for a deeper flavor or swap in white chocolate for a twist.
  • Substitute store-bought peanut butter cookies for a quick version.
  • Drizzle with melted chocolate and add graham cracker crumbs for presentation.
  • Keep cookies and filling separate if storing in advance, then assemble when ready to serve.