Thin Mints

Thin Mints
⏱️ cook time 1 hour 30 minutes (includes cooling and setting time)
🍽️ servings 18
⚡ Difficulty easy

intro

Crisp, mint-kissed chocolate shortbread cookies coated in a snappy dark chocolate shell, replicating the iconic Girl Scout favorite for gifting or snacking.

Ingredients

All-purpose flour 1 ½ cups (180g)
Unsweetened Dutch-process cocoa powder ¾ cup (75g)
Unsalted butter (softened to room temperature) 1 cup (226g)
70% cacao dark chocolate (finely chopped) 3 cups (510g)
Powdered sugar 1 cup (120g)
Fine sea salt ¼ teaspoon
Pure peppermint extract (divided) 2 teaspoons
Pure vanilla extract 1 teaspoon
Refined coconut oil 2 tablespoons (28g)

Steps

1

Preheat and Mix Dry Ingredients

Preheat your oven to 350°F (175°C) and line two large baking sheets with parchment paper. In a medium mixing bowl, whisk together 180g all-purpose flour, 75g unsweetened cocoa powder, and ¼ teaspoon fine sea salt until fully combined with no visible lumps.

Step 1
step1:Preheat and Mix Dry Ingredients
2

Cream Butter and Sugar

In a large stand mixer fitted with a paddle attachment, beat 226g softened unsalted butter and 120g powdered sugar on medium speed for 2 minutes until light, fluffy, and pale in color. Scrape down the bowl sides, then mix in 1.5 teaspoons peppermint extract and 1 teaspoon vanilla extract on low speed for 30 seconds until fully incorporated.

Step 2
step2:Cream Butter and Sugar
3

Mix and Roll Dough

Gradually add the dry flour-cocoa mixture to the butter mixture on low speed, mixing only until no dry streaks remain (about 45 seconds, do not overmix to avoid tough cookies). Roll the dough between two sheets of parchment paper to a uniform ⅛-inch thickness, then cut into 2-inch round circles with a cookie cutter, placing cuts 1 inch apart on the prepared baking sheets.

Step 3
step3:Mix and Roll Dough
4

Bake the Cookies

Bake the cookies for exactly 10 minutes at 350°F (175°C); the cookies will feel soft when removed from the oven but set fully as they cool. Let cookies rest on the hot baking sheet for 5 minutes before transferring to a wire rack to cool completely to room temperature (about 20 minutes) before coating.

Step 4
step4:Bake the Cookies
5

Make Mint Chocolate Coating

While cookies cool, prepare the mint chocolate coating: Place 510g chopped dark chocolate and 28g refined coconut oil in a heatproof bowl set over a pan of gently simmering water (double boiler, ensure no water touches the bottom of the bowl). Stir constantly over low heat until fully melted and smooth, about 3 minutes. Remove from heat, stir in the remaining ½ teaspoon peppermint extract, and let cool 5 minutes to 90°F (32°C).

Step 5
step5:Make Mint Chocolate Coating
6

Dip Cookies in Chocolate

Use a dinner fork to dip each fully cooled cookie completely into the melted chocolate, tapping the fork gently on the bowl edge to shake off excess coating. Place dipped cookies back on parchment-lined trays, then refrigerate for 20 minutes until the chocolate shell is fully firm and snappy before serving.

Step 6
step6:Dip Cookies in Chocolate

Tips

1.Do not overmix the cookie dough or overbake the cookies: overmixing creates tough, dense cookies, and overbaking leads to burnt, bitter edges due to the high cocoa content of the dough.
2.Ensure cookies are fully room temperature before dipping in chocolate; warm cookies will cause the chocolate to seize, slide off the cookie, or develop a dull, streaky white bloom as it sets.
3.Use refined (not unrefined) coconut oil for the chocolate coating to avoid a strong coconut flavor that clashes with the mint; substitute with equal amounts of cocoa butter if preferred for an extra-snappy chocolate shell.

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Thin Mints:Frequently Asked Questions

1.Why doesn’t my chocolate coating have that signature snappy texture like real Thin Mints?
That snappy shell comes from properly tempering your finely chopped 70% cacao dark chocolate—don’t just rush a quick, unmonitored microwave melt! Heat it to a steady 88–90°F, make sure no water gets into the bowl as you work, and let dipped cookies set on parchment in a cool, low-humidity 65°F space instead of the fridge for that perfect crisp bite.
2.Can I use regular natural unsweetened cocoa powder instead of Dutch-process for the shortbread base?
You can, but it will shift the final flavor and color. Dutch-process cocoa has the smooth, deep, non-tangy chocolate taste that matches classic Thin Mints, while natural cocoa is brighter and more acidic. If you swap, add 1/8 teaspoon of baking soda per ½ cup of natural cocoa to balance acidity and keep the signature shortbread texture consistent.
3.My shortbread cookies turned out soft instead of crisp—what went wrong?
Soft shortbread usually comes down to two common missteps: overworking the dough, or baking at too low a temperature. Mix the all-purpose flour, cocoa, softened unsalted butter, and powdered sugar just until combined to avoid tough, chewy gluten development. Bake at 350°F for 10–12 minutes, then let cookies cool fully on the pan to crisp as they set.
4.How do I get a balanced mint flavor without making the cookies taste like toothpaste?
Pure peppermint extract is extremely potent, so always start small! Add ¼ teaspoon of extract to the shortbread dough, and another ¼ teaspoon to your melted dark chocolate coating, tasting as you go. Skip artificial mint flavorings, which leave that harsh, toothpaste-like aftertaste even in tiny amounts—you can always add an extra drop, but you can’t remove excess extract.
5.How should I store these copycat Thin Mints, and how long do they stay fresh?
Once the chocolate coating is fully set, stack cookies in an airtight container between sheets of parchment paper to prevent sticking. Keep them in a cool, dark cabinet away from ovens or sunny windows for up to 2 weeks, or freeze them for up to 3 months. Many fans love them straight from the freezer for that extra-cold, crisp classic bite.
6.Can I adapt this recipe to be dairy-free or vegan for friends with dietary restrictions?
Absolutely! Swap the room-temperature unsalted butter for an equal amount of firm, stick-style vegan butter (skip spreadable tub versions, which have too much added water that makes shortbread soft). Double check that your 70% cacao dark chocolate is labeled dairy-free, as many dark chocolates contain hidden milk solids, and keep all other measurements the same for delicious, crowd-pleasing results.

Comments (10)

just now

OMG these taste EXACTLY like the real Girl Scout Thin Mints!!! I made a double batch for my kid’s soccer team snack and every single parent asked for the recipe. Total game changer now that cookie season is over, I don’t have to hoard boxes in my freezer anymore. SO easy to make too, I didn’t even break a sweat.

5 minutes ago

I’ve been making copycat Thin Mints for over 20 years, and this recipe is by far the closest I’ve ever gotten to the original. The tip to let the chocolate set at cool room temp instead of the fridge right away is genius, no more weird streaky chocolate coating! My grandkids are obsessed, they already asked for another batch when they visit next weekend.

30 minutes ago

As a broke college student with barely any baking supplies, I was shocked how easy these were to pull off! I didn’t even have a double boiler, I just melted the chocolate in the microwave in 30 second bursts and it worked perfectly. My dorm floor went crazy for them, I already have three people Venmoing me to make them more batches.

2 weeks ago

I swapped the regular vanilla wafers for gluten-free shortbread cookies to make these for my daughter who has celiac, and you literally cannot tell the difference! She said they’re better than the actual Thin Mints she used to get before her diagnosis. I’m crying happy tears over here.

1 week ago

Oh thank you for sharing this swap! My son is gluten free too and I’ve been looking for a copycat recipe I can adapt for him, can’t wait to try this!

2 days ago

These were so good! I only had dark chocolate chips on hand instead of semi-sweet, and the coating set a little thicker than I wanted, but the mint flavor was perfect. Do you think I could add a tiny bit of coconut oil to thin the chocolate out next time?

yesterday

Great question! Adding 1-2 teaspoons of coconut oil to your melted chocolate will absolutely thin it out for a smoother, thinner coating that matches the classic Thin Mint texture perfectly. So glad you loved the flavor!

yesterday

These are my new go-to meal prep sweet treat! I make a batch on Sunday, portion them out into little snack bags, and they satisfy my after-dinner chocolate craving every single night without me reaching for a whole pint of ice cream. How long do these stay good in the freezer, exactly?

2 hours ago

Love that these are part of your weekly meal prep! They stay perfectly fresh in the freezer for up to 3 months — just let them sit at room temp for 2-3 minutes before eating for that classic crisp Thin Mint bite.

2 hours ago

Took these to my office potluck today and got so many compliments! Only thing I changed was adding a tiny pinch of flaky sea salt on top of half the batch, and that sweet-salty combo was chef’s kiss. Next time I’ll do the whole batch with salt, no question.

30 minutes ago

The flaky salt idea is brilliant!!! I’m making these for girls’ night this weekend and I’m 100% stealing that tip, that sounds incredible.

1 week ago

Made these for our neighborhood holiday cookie swap last weekend and they were the first plate to get cleared! I even snuck a few into my work lunch for midday treats all week, they hold up so well in the fridge. 10/10, will be making these every year from now on.

5 days ago

Did you keep them stored in an airtight container? I’m making these for my office potluck next week and want to make sure they stay fresh!

3 days ago

So happy they were a hit at the cookie swap! Storing them in an airtight container in the fridge for up to 2 weeks works perfectly — they even freeze great for up to 3 months if you want to prep ahead for your potluck.

5 days ago

Taste was great, but I messed up the peppermint extract! I put in a full tablespoon instead of a teaspoon and they were so minty they made my eyes water. Don’t be like me, measure your extracts people 😂

3 days ago

LMAO I did the exact same thing last time I made peppermint brownies! Tasted like I was eating toothpaste, total rookie move. I’ll have to remember to go slow with the extract for these.

2 days ago

Oh no, sorry the mint level was too strong for you! Peppermint extract is super potent, so a little goes a very long way. If you ever overdo it, you can always dip them in a little extra plain chocolate to mellow out the flavor!

3 days ago

I was a Girl Scout for 8 years and sold so many boxes of Thin Mints back in the day, so I take my copycat recipes very seriously. These are SPOT ON. The crisp cookie center, the snappy chocolate coating, that perfect cool mint hit — I swear I would not be able to tell these apart from the ones I used to sell door to door.

2 days ago

Fellow Girl Scout alum here! I’m so picky about Thin Mints too — I’ve tried three other copycat recipes that were way too sweet or had that weird artificial mint taste. Can’t wait to test this one this weekend!

yesterday

As a fellow former Thin Mint hoarder, I take that as the highest possible compliment! Hope you love them as much as we do — they really do hit that nostalgic note perfectly.