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S’mores Whoopie Pies

A fun and indulgent treat inspired by classic campfire s’mores. Soft, chocolatey cake rounds sandwich a fluffy marshmallow cream filling and graham cracker crumbs, creating the perfect combination of chocolate, marshmallow, and graham in every bite.
Print Recipe
Prep Time:20 minutes
Cook Time:12 minutes
Total Time:35 minutes

Equipment

  • Mixing bowls (medium and large)
  • Whisk and electric mixer
  • Measuring cups and spoons
  • Baking sheets
  • Parchment paper
  • Cookie scoop or spoon
  • Wire cooling rack
  • Spatula or piping bag

Ingredients

  • For the Chocolate Cake Rounds:
  • 1 cup all-purpose flour
  • 1/2 cup unsweetened cocoa powder
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 1/2 cup unsalted butter softened
  • 1/2 cup granulated sugar
  • 1/2 cup brown sugar packed
  • 1 large egg
  • 1 tsp vanilla extract
  • 1/2 cup buttermilk
  • For the Marshmallow Filling:
  • 1 cup marshmallow fluff or marshmallow creme
  • 1/4 cup unsalted butter softened
  • 1 tsp vanilla extract
  • For Assembly:
  • 1/2 cup graham cracker crumbs

Instructions

  • Preheat Oven: Preheat oven to 350°F (175°C). Line two baking sheets with parchment paper.
  • Mix Dry Ingredients: In a medium bowl, whisk together flour, cocoa powder, baking soda, and salt.
  • Cream Butter and Sugars: In a large bowl, beat butter, granulated sugar, and brown sugar until light and fluffy. Add egg and vanilla, mixing well.
  • Combine Batter: Alternately add dry ingredients and buttermilk to the butter mixture, beginning and ending with dry ingredients. Mix until just combined.
  • Pipe or Scoop: Using a cookie scoop or spoon, drop about 2 tablespoons of batter per cookie onto prepared baking sheets, spacing 2 inches apart.
  • Bake: Bake for 10–12 minutes, or until a toothpick inserted comes out clean. Cool on baking sheets for 5 minutes, then transfer to a wire rack to cool completely.
  • Prepare Filling: In a medium bowl, beat butter until creamy, then add marshmallow fluff and vanilla. Mix until smooth.
  • Assemble Whoopie Pies: Spread or pipe filling onto the flat side of one chocolate round, sprinkle with graham cracker crumbs, and top with another chocolate round to form a sandwich.
  • Serve: Enjoy immediately or store for later.
Servings: 12 whoopie pies