Chocolate Marshmallow Sandwich Cookies for the Ultimate Gooey Chocolate Treat

Craving something irresistibly chocolatey with a nostalgic twist? Chocolate marshmallow sandwich cookies combine the rich flavor of chewy cocoa cookies with a soft, fluffy marshmallow filling for a dessert that’s fun, indulgent, and impossible to stop at just one.

Whether you’re baking for a party, holiday platter, or just a cozy night in, these sandwich cookies bring together the best of two classic sweets: brownies and s’mores. With their soft texture, gooey center, and eye-catching presentation, they’re sure to become a favorite in your cookie rotation.

Ingredients

This recipe makes about 14 sandwich cookies (28 individual cookies).

For the Chocolate Cookies

  • One cup unsalted butter, softened
  • One cup brown sugar
  • One third cup granulated sugar
  • Two large eggs
  • One teaspoon vanilla extract
  • One and three-fourths cups all-purpose flour
  • Two thirds cup unsweetened cocoa powder
  • One teaspoon baking soda
  • One quarter teaspoon salt

For the Marshmallow Filling

  • One and a half cups marshmallow creme (or marshmallow fluff)
  • Half cup unsalted butter, softened
  • One cup powdered sugar
  • One teaspoon vanilla extract
  • Pinch of salt

Preparation Time

  • Prep time: 25 minutes
  • Bake time: 10 minutes
  • Assembly time: 15 minutes
  • Total time: Approximately 50 minutes

Step-by-Step Instructions

Step 1: Make the Cookie Dough

  1. Preheat oven to 350 degrees Fahrenheit and line two baking sheets with parchment paper.
  2. In a large bowl, beat together the butter, brown sugar, and granulated sugar until creamy.
  3. Add eggs one at a time, then mix in vanilla extract.
  4. In a separate bowl, whisk together flour, cocoa powder, baking soda, and salt.
  5. Gradually add the dry ingredients to the wet mixture, stirring until a soft dough forms.
  6. Scoop dough by tablespoons, roll into balls, and place two inches apart on baking sheets.

Step 2: Bake the Cookies

  1. Bake for 9 to 11 minutes or until the edges are set but centers remain soft.
  2. Remove from the oven and let cookies cool on the baking sheet for 5 minutes.
  3. Transfer to a wire rack to cool completely.

Step 3: Prepare the Marshmallow Filling

  1. In a mixing bowl, beat softened butter with marshmallow creme until light and fluffy.
  2. Add powdered sugar, vanilla, and a pinch of salt. Beat until smooth and creamy.
  3. Chill the filling for 10 minutes if it is too soft to spread.

Step 4: Assemble the Sandwich Cookies

  1. Once cookies are fully cooled, spread or pipe one to two tablespoons of marshmallow filling onto the flat side of half the cookies.
  2. Top with the remaining cookies and press gently to create sandwiches.
  3. Optional: roll the edges in mini chocolate chips, sprinkles, or crushed graham crackers for extra flair.

Serving Suggestions

  • Serve chilled for a firmer texture or at room temperature for extra gooeyness.
  • Pair with hot chocolate, coffee, or a tall glass of milk.
  • Store in an airtight container at room temperature for up to three days or refrigerate for up to one week.

Nutritional Highlights

NutrientPer Sandwich Cookie (1 of 14)
Calories320
Total Fat16 grams
Saturated Fat9 grams
Cholesterol45 milligrams
Sodium160 milligrams
Carbohydrates43 grams
Fiber2 grams
Sugars29 grams
Protein3 grams

Key Benefits:

  • A satisfying dessert with a nostalgic flavor profile
  • Contains cocoa powder, a natural source of antioxidants
  • Great for portion control thanks to individual serving size
  • Easily adaptable to gluten-free or dairy-free versions if needed

Tips for Success

  • Do not overbake the cookies; they should be soft and slightly chewy for the best sandwich texture.
  • If your marshmallow filling is too runny, chill it briefly before assembling.
  • Use a piping bag for neater filling application and consistent cookie appearance.
  • Add a dash of espresso powder to the cookie dough to enhance the chocolate flavor.

Variations to Try

  • Swap marshmallow filling for peanut butter buttercream for a Reese’s-inspired twist.
  • Add chopped chocolate or mini chocolate chips to the dough for double chocolate flavor.
  • Mix crushed graham crackers into the filling for a s’mores-style variation.
  • Use peppermint extract in the filling for a festive holiday version.

Chocolate marshmallow sandwich cookies are the perfect combination of soft, chewy, creamy, and sweet — a true treat for both kids and adults. With their nostalgic flavor, easy prep, and crowd-pleasing presentation, they’re a go-to dessert for any occasion.

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