Homemade Thin Mint Cookies Recipe — Copycat Girl Scout Treats

You don’t have to wait for cookie season to enjoy these Copycat Girl Scout Thin Mint Cookies. This easy homemade version delivers crisp, chocolatey-mint cookies any time of year — fresh from your kitchen.

Cookies ready to serve and enjoy.
(Photo by Viana Boenzli)

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While buying Girl Scout cookies is a wonderful way to support local troops, this copycat recipe lets you satisfy that Thin Mint craving any time. These cookies balance rich cocoa and a cool peppermint note, finished with a glossy chocolate coating. They’re essentially crisp chocolate sugar cookies with a refreshing mint twist.

They’re straightforward to make, and the first crunchy bite is pure bliss. Below you’ll find ingredient notes, step-by-step instructions, variations, topping ideas, storage tips, and FAQs to help you bake the best batch.

Enjoying the finished cookies.
(Photo by Viana Boenzli)

🤔 What’s the origin of the Thin Mint cookie?

Thin Mints first appeared as part of the Girl Scout cookie program in the mid-20th century and quickly became a favorite for their crisp texture, minty flavor, and chocolate coating. This homemade version recreates that iconic taste so you can enjoy it year-round.

On board, with one cookie in half.
(Photo by Viana Boenzli)

🧾 Ingredients

Ingredients.
(Photo by Viana Boenzli)
  • Unsalted butter
  • Powdered sugar
  • Egg
  • Vanilla extract
  • Peppermint extract
  • All-purpose flour
  • Unsweetened cocoa powder
  • Salt
  • Baking powder
  • Chocolate melts (or chocolate for coating)

See the recipe card below for exact measurements and yields.

⭐ Ingredient notes

  • Powdered sugar: Keeps the cookies tender and dissolves smoothly into the butter for a delicate texture.
  • Peppermint extract: Adds the signature refreshing mint flavor — use sparingly so it complements the chocolate.
  • Unsweetened cocoa powder: Provides deep chocolate flavor without extra sweetness.
  • Chocolate melts: Create a glossy, even coating. If you use baking chocolate or chips, add a little neutral oil to reach a coating consistency.
Lots of finished cookies, in a bowl.
(Photo by Viana Boenzli)

🥣 How to make Copycat Girl Scout Thin Mints

1. In a stand mixer with the paddle attachment (or using a handheld mixer), cream the butter and powdered sugar until light and smooth.

2. Add the egg, vanilla, and peppermint extract and beat until fully combined.

3. Whisk together the flour, cocoa powder, salt, and baking powder in a separate bowl.

4. On low speed, gradually mix the dry ingredients into the wet until just combined.

Mixed cookie batter, in a bowl.
(Photo by Viana Boenzli)

5. Place the dough between two sheets of parchment and roll very thin — about 1/8 inch. Thin is key for authentic Thin Mints.

Rolling out the dough between sheets of parchment paper.
(Photo by Viana Boenzli)

6. Chill the dough for 1 hour to firm it up, which makes cutting easier.

7. Preheat the oven to 350°F. Use a 2-inch round cutter to cut shapes. Gather scraps, re-roll, and cut until all dough is used.

Dough rolled out and cookies cut out in a round shape before baking.
(Photo by Viana Boenzli)

8. Arrange cookies on a parchment-lined sheet and bake on the middle rack for about 10 minutes. Transfer to a cooling rack to cool completely.

On a parchment lined baking sheet.
(Photo by Viana Boenzli)

9. Melt the chocolate in 30-second bursts in the microwave, stirring between intervals, or use a double boiler until smooth. Stir in a little peppermint extract to flavor the coating.

10. Dip each cooled cookie into the chocolate using two forks: place the cookie on one fork, dip and flip, lift and let excess drip off, then transfer to parchment or a silicone mat to set. If the coating becomes too thick, gently rewarm it.

Dipping the cooled cookies in melted chocolate.
(Photo by Viana Boenzli)

11. Let the chocolate set at room temperature, or chill the cookies briefly in the refrigerator to speed setting. Enjoy immediately, or store for later.

Chocolate setting on dipped cookies.
(Photo by Viana Boenzli)

Serve right away, or keep chilled for an extra-cool bite.

A tall stack of cookies.
(Photo by Viana Boenzli)

🍫 Variations

  • No Mint: Omit peppermint for a plain chocolate cookie.
  • Milk Chocolate: Use milk chocolate melts for a sweeter coating.
  • Dark Chocolate: Use dark chocolate for a richer finish.
  • White Chocolate: Swap for white chocolate melts for a creamier twist.
  • Double Mint: Add a touch of spearmint extract with peppermint for a layered mint profile.
  • Adult Twist: Add a splash of peppermint schnapps to the coating for an adult version.
  • Orange Twist: Replace some peppermint with orange extract for a chocolate-citrus combo.

✨ Topping Ideas

Add toppings immediately after dipping while the chocolate is still wet so they stick.

  • Drizzled chocolate: Create a decorative drizzle with contrasting chocolate.
  • Sprinkles: Add colorful sprinkles for a festive look.
  • Toasted coconut: For a crunchy, tropical touch.
  • Crushed candies: Try crushed peppermint candies or small chocolate pieces.

🧺 Storage and freezing

Store cookies in the refrigerator for up to 7 days, or freeze for up to 3 months. Thaw in the refrigerator before serving.

❓ FAQ

What type of chocolate should I use?

A 50/50 mix of milk and semi-sweet chocolate gives a balanced flavor. Use your preferred chocolate—milk, semi-sweet, or dark—to suit your taste.

Can I use chocolate instead of chocolate melts?

Yes. Use good-quality baking chocolate or chips and add about 1/2 teaspoon of neutral oil (vegetable or coconut) per cup of chocolate to improve coating consistency.

Is there a gluten-free version?

Substitute all-purpose flour with a gluten-free flour blend. Texture may vary slightly depending on the blend.

Can I make the dough ahead of time?

Yes. Refrigerate the dough for a few days or freeze it for up to three months. Thaw and roll as directed.

I only have mint or spearmint extract—is that okay?

Yes. Peppermint is stronger; spearmint is milder, so adjust quantity to taste to avoid an overpowering flavor.

Love sweet treats? Try other recipes for more baking inspiration.

📝 Recipe

Copycat Girl Scout Thin Mints Cookies.

Copycat Girl Scouts Thin Mint Cookies

This recipe yields crisp, mint-coated chocolate cookies similar to the beloved Thin Mints.
Prep Time: 10 mins
Cook Time: 10 mins
Chill Time: 1 hr
Total Time: 1 hr 20 mins
Servings: 60 cookies

Ingredients

Cookies

  • ¾ cup unsalted butter, at room temperature
  • 1 cup powdered sugar
  • 1 large egg, at room temperature
  • 1 tsp vanilla extract
  • ½ tsp peppermint extract
  • 1 ¾ cups all-purpose flour
  • ⅔ cup unsweetened cocoa powder
  • ¼ tsp salt
  • 1 tsp baking powder

Chocolate Coating

  • 16 oz chocolate melts (half milk, half semi-sweet) or equivalent chocolate
  • ¼ tsp peppermint extract, or to taste

Instructions

  1. Cream butter and powdered sugar until light.
  2. Add egg, vanilla, and peppermint; beat until smooth.
  3. Whisk flour, cocoa, salt, and baking powder together.
  4. Mix dry ingredients into wet on low until just combined.
  5. Roll dough very thin (about 1/8 inch) between parchment sheets.
  6. Chill dough for 1 hour.
  7. Preheat oven to 350°F. Cut 2-inch rounds and arrange on parchment-lined sheets.
  8. Bake 10 minutes, then cool on a rack.
  9. Melt chocolate and stir in peppermint extract. Dip cooled cookies, allow excess to drip off, and set on parchment.
  10. Let chocolate set at room temperature or chill briefly to speed setting. Store as directed.

Notes

For a glossier coating with baking chocolate or chips, add a small amount of neutral oil. Variations, topping ideas, storage, and FAQs are listed above to help tailor the recipe to your taste.

Calories: 83 kcal |
Carbs: 10 g |
Protein: 1 g |
Fat: 5 g