Go Back

Homemade Thin Mints

If you're a fan of Girl Scout Thin Mints cookies, try making these copycat versions yourself.
Print Recipe
Prep Time 30 minutes
Cook Time 7 minutes
Total Time 2 hours 37 minutes
Course Snack
Cuisine American
Servings 24 people
Calories 5037.9 kcal

Equipment

  • 1 Electric Mixer Stand or hand mixer for creaming butter and combining dough ingredients.
  • 1 Large Mixing Bowl For preparing the cookie dough.
  • 1 Baking Sheet For baking the cookie slices.
  • 1 Wire Rack For cooling baked cookies completely before dipping.
  • 1 Small Microwave Safe Bowl For melting the chocolate coating.

Ingredients
  

Main

  • ½ cup butter softened
  • ½ cup sugar
  • ¼ teaspoon salt
  • 1 large egg yolk
  • ½ teaspoon peppermint extract
  • 1 cup flour
  • ¼ cup unsweetened cocoa powder
  • 8 ounces semisweet chocolate chopped
  • 8 ounces dark chocolate candy melts

Instructions
 

  • Beat butter in a large bowl with an electric mixer at medium speed about 30 seconds. Add sugar and salt and beat until combined. Beat in egg yolk and peppermint extract. Beat in flour and cocoa. Shape dough into a 6-inch roll. Wrap in plastic wrap or wax paper. Chill until firm enough to slice, about 2 hours, or freeze about 1 hour.
  • Preheat the oven to 375 degrees F (190 degrees C).
  • Cut roll into 1/8- to 1/4-inch slices. Arrange 2 inches apart on an ungreased baking sheet.
  • Bake in the preheated oven until edges are firm, 7 to 8 minutes. Cool on the baking sheet on a wire rack (cookies are too delicate to remove until cooled).
  • Microwave semisweet chocolate and candy melts in a small bowl, stirring twice, until melted and smooth, 1 to 2 minutes.
  • Dip each cookie into melted chocolate, allowing excess to drip off. Arrange on wax paper-lined trays. Chill until set.

Notes

For optimal dough consistency, ensure butter is truly softened, not melted, for proper creaming. Chilling the dough sufficiently is paramount for clean, uniform slices, which in turn ensures even baking. If the dough becomes too hard after prolonged chilling, let it sit at room temperature for a few minutes before slicing. When melting the chocolate, do so gently in a microwave or over a double boiler to prevent seizing; a smooth, fluid consistency is vital for a thin, even coating. Ensure cookies are completely cooled before dipping to prevent the chocolate from melting off or becoming uneven. A touch more peppermint extract in the chocolate coating can amplify the classic Thin Mint flavor.