Go Back
+ servings
A chocolate surprise cookie cut in half showing marshmallow filling with sprinkles all around

Chocolate Surprise Cookies

These look like simple chocolate-frosted cookies. But take a bite and you'll uncover the reason they're called surprise cookies... there's a marshmallow hidden inside!
No ratings yet
Print Pin
Course: Dessert
Cuisine: American
Keyword: Chocolate Cookies, Filled Cookies, Fun Cookie Recipes, Kids Desserts
Prep Time: 25 minutes
Cook Time: 10 minutes
Total Time: 35 minutes
Makes: 2 dozen cookies
Author: Sues

Ingredients

  • 1 ¾ cups all-purpose flour
  • ¾ cup cocoa powder
  • ½ tsp baking soda
  • ½ tsp salt
  • ½ cup (1 stick) unsalted butter, room temperature
  • 1 cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • Chocolate frosting (recipe below)
  • 12 large marshmallows, cut in half horizontally
  • Sprinkles, optional for topping

Chocolate Frosting

  • 2 cups confectioners' sugar
  • ¼ cup cocoa powder
  • 4 Tbsp (½ stick) unsalted butter, melted
  • ¼ tsp vanilla extract
  • ¼ cup milk

Instructions

  • Preheat oven to 375 degrees.
  • In a medium bowl, whisk flour, cocoa powder, baking soda, and salt together.
  • In the bowl of a stand mixer or in a large bowl with a hand mixer or whisk, cream butter and sugar together until light and fluffy, about 3 minutes. Add egg, milk, and vanilla, and beat until well combined. 
  • Slowly add flour mixture and mix until just combined, taking care not to over-mix.
  • Drop about a tablespoon of dough onto an ungreased cookie sheet, about 2 inches apart. Bake until cookies for 9 minutes before removing from the oven.
  • Place a marshmallow, cut-side down, in the center of each cookie, pressing down slightly. Put the cookie sheet back into the oven and continue baking for just one more minute, until marshmallows begin to melt. Remove from oven and transfer cookies to a wire rack to cool completely before frosting.
  • Starting in the center of the marshmallow and continuing outward, spread about 1 tablespoon of frosting over the marshmallow, until it's completely covered. Top with sprinkles if desired and let frosting harden before serving.

Chocolate Frosting

  • In a medium bowl, whisk together confectioners' sugar and cocoa powder. Add melted butter and vanilla, while continuing to whisk until combined. Mix in milk and whisk until smooth.

Notes

Share a Photo of Your Finished Recipe!Mention @wearenotmartha and share a photo if you've made the recipe!