Thin Mint Brownies

by Jamie on March 12, 2012

Post image for Thin Mint Brownies

I have and probably will always have a slight obsession with Girl Scout Cookies. I blame this craziness on my dad. Ever since I was a kid, I remember him ordering Thin Mints in excess- filling our freezer to the brim with green boxes of mint chocolate goodness. He used to blame it on the fact that he simply couldn’t deny any of the cookie toting little girls, so he had to order a couple of boxes from all of them. He’s kind of a sucker like that.

On a recent trip to visit my dad and Louie, I opened his snack cabinet and was greeted by a sea of primary colors – yes, his cabinet was literally bulging with boxes upon boxes of Girl Scout Cookies. He tossed a couple of them my way and instructed me to bake something with them. So, bake something with them I did.

I took my absolute favorite recipe for homemade brownies and baked a layer of chopped Thin Mints into the center. As though that wasn’t enough, I decided to make them a little more decadent by serving them with a drizzle of delicious, peppermint infused Hot Fudge Sauce and a dollop of freshly whipped cream. Indulgent? Yes. Delectable? Absolutely.

Whether you’re looking for a way to use up your Girl Scout Cookies or you’re just a mint chocolate fan, I think these brownies are the perfect way to get the best of both worlds.

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Thin Mint Brownies

March 12th, 2012

Yield: 16 servings

Prep Time: 10 minutes

Cook Time:


4 ounces unsweetened chocolate; coarsely chopped
3/4 cup butter, cut into large cubes
1 1/4 cups white sugar
3 large eggs
1 teaspoon pure vanilla extract
1/4 teaspoon peppermint extract
1/4 teaspoon fine grain salt
1 cup all-purpose flour
10 Thin Mint Cookies, roughly chopped


1. Preheat oven to 350 degrees. Line an 8×8 inch baking pan with foil and spray with nonstick cooking spray.

2. In a large microwave-safe bowl, melt the chocolate and butter on medium (50% power) for 3-4 minutes or until butter is melted.

3. Whisk until chocolate is melted. Stir in sugar and add in eggs, extracts and salt; mixing until thoroughly combined. Gradually add in flour and stir until just combined.

4. Spread 1/2 of the batter into prepared pan. Add an even layer of Thin Mint Cookies and cover with remaining 1/2 of brownie batter. Bake for 30-35 minutes; do not over bake.

5. Remove to cooling rack. Allow to cool completely before cutting.

6. If desired, top with Hot Fudge Sauce and a dollop of freshly whipped cream.


- No Thin Mints? Try using Keebler Grasshopper Cookies as a great alternative.
- I used a large round biscuit cutter to create circular shaped brownies.
- I added 1/4 teaspoon of peppermint extract to my Homemade Hot Fudge Sauce for a little added mint flavor.

{ 56 comments… read them below or add one }

Blog is the New Black March 12, 2012 at 7:36 pm

I hear your obsession and WANT THESE NOW!


Chrissie Doades March 7, 2013 at 5:26 pm


Loving the recipes but could you not use ounces for the butter and flour as
you have for the dark cooking chocolate please

Best regards


Russell at Chasing Delicious March 12, 2012 at 7:46 pm

These thin mint brownies look scrumptious! This is my kind of dessert… or lunch ; )


Eat Good 4 Life March 12, 2012 at 7:47 pm

This sounds just divine!! I could eat a couple of those pieces all by myself :-) Chocolate and mint? Just sinful!!


Alexa March 12, 2012 at 7:52 pm

These look so elegant and they sound divine!


Daneilia March 12, 2012 at 8:10 pm

Oh my goodness Jamie, how did you know Thin Mints are my fave? lol. Those brownies look delicious…my hubs would love some (he’s a brownie addict).


Urban Wife March 12, 2012 at 8:43 pm

Oh dear! Pinning these right away.


megan @ whatmegansmaking March 12, 2012 at 9:13 pm

oh my goodness, I wish I had a box of thin mints right now! These look INCREDIBLE! :)


Katrina @ Warm Vanilla Sugar March 12, 2012 at 9:20 pm

Awesome. I am in looooove with this idea! Can’t wait to impress the boy with these!


Cassie March 12, 2012 at 9:30 pm

Oh my heavens. Absolutely divine, Jamie! “Slight obsession” is quite the understatement in my case. Thin Mints are my all-time favorite too. I love these!


Eva @ Eva Bakes March 12, 2012 at 9:40 pm

I love thin mints and anything with chocolate and mint! These sound awesome!


Becca- cookie jar treats March 12, 2012 at 10:00 pm

These look so delectable. We didn’t buy any girl scout cookies this year, but I seriously regret it because I’m seeing so many awesome recipes now :s


Maria Rausova March 12, 2012 at 10:03 pm

Mmmm these look beautiful and delicious! Love the sweetness of brownies paired with the freshness of mint!


Lisa March 12, 2012 at 10:44 pm

I made a version of these last year when I had a bunch of Thin Mints, but these look even better! I didn’t even think to add mint extract to the batter, and I love the one bowl method here. I have them baking in the oven now, had a bad day and needed a little something special at the end of it!


Melange March 12, 2012 at 11:52 pm

Divine and classic ! I loved it in the first sight..


Cindy March 13, 2012 at 7:56 am

Yes, please. Right now! These look elegant, like they’d make a great dessert for company. If they last all the way to the table!


Janet Rudolph @ DyingforChocolate March 13, 2012 at 9:08 am

Oh my, yet another way to use Thin Mints to make something fabulous! Thanks for the recipe and beautiful photos.


Jennifer @ Peanut Butter and Peppers March 13, 2012 at 9:18 am

This recipe looks fantastic! I was looking for a way to use my thin mints, perfect!


Georgia @ The Comfort of Cooking March 13, 2012 at 9:20 am

What a great idea for brownies! These look so rich and delicious. Thanks for sharing!


alison @ Ingredients, Inc. March 13, 2012 at 9:31 am

fabulous!! I can’t wait to try these


Megan Pence @ Wanna Be A Country Cleaver March 13, 2012 at 9:32 am

Apparently great minds think alike – I just made these for my blog last week hahah. There is no substitute for a good Thin Mint Cookie. Or brownies as it were ;) YUM!


Emilie @ Emilie's Enjoyables March 13, 2012 at 9:40 am

I would eat anything on this blog purely based off of how beautiful it always looks in the pictures!


Elizabeth March 13, 2012 at 9:54 am

There are never enough different kinds of brownies!


Clarissa March 13, 2012 at 10:04 am

Holy cow, these look ridiculously good. Something I learned from friends in college to do with thin mints is to use them as a straw to drink how chocolate. What you do is bite off a small bite on opposite ends. Then take hot chocolate and suck a sip through the cookie and shove it in your mouth before it all falls apart. It’s warm and rich and sooooo good. I think I’m have to go hunt down some girl scouts so I can make these!


Emily March 13, 2012 at 10:06 am

These sound AWESOME!! But who has any leftover Thin Mints?! :(


Cookbook Queen March 13, 2012 at 10:06 am

Jamie these look too good to be true!! Definitely making SOON!!


Natalie @ Cooking for My Kids March 13, 2012 at 10:12 am

Brownie perfection. Period. Wow.


ButterYum March 13, 2012 at 10:50 am

Perfect – and a great way to stretch the thin mint love further.


Maria March 13, 2012 at 11:01 am

Love the brownies! Happy birthday! xo


Mireia March 13, 2012 at 2:23 pm

I’m not really into mint but I love chocolate so I guess I won’t put the mint on but I’ll have to try the rest!!!


Lauren at Keep It Sweet March 13, 2012 at 4:11 pm

These babies are SERIOUSLY calling my name right now!


Erin @ Texanerin Baking March 13, 2012 at 4:16 pm

This right here is just frustrating. I live in Germany, far away from Girl Scout cookies, and there are all these yummy recipes popping up now with Thin Mint. It’s driving me crazy! I’m saving this recipe for the next time I’m in the US. :)

The pictures are absolutely beautiful, as always. I had to show them to my husband and even he said “Oooh…wow.”


Kristen @ The Little Bitchin Kitchen March 14, 2012 at 9:47 am

Oh my goodness!! This looks AMAZING. Making tonight!


Tracy March 14, 2012 at 2:31 pm

These brownies sound amazing! Love them with that dollop of whipped cream!


Kammie (Sensual Appeal) March 14, 2012 at 3:28 pm

These look great for St Paddy’s Day. Can’t wait to try them!


Ruth March 14, 2012 at 8:12 pm

Those. Look. Awesome.


jean March 15, 2012 at 2:07 am

Lovely – yummy looking and great photography! They appear to be round….but I see you used an 8″ pan….did you cut them with a donut cutter or something or is the picture deceiving?
No cookies on hand – thanks for the idea of an alternate cookie.


Jamie March 20, 2012 at 5:35 pm

Thanks for stopping by. Yes, I used a small biscuit cutter to create circles. Have a great day.


katie March 16, 2012 at 7:37 am

WOW–these brownies look heavenly! I love adding Girl Scout cookies into recipes!


Jocelyn at BruCrew Life March 16, 2012 at 12:18 pm

I could eat an entire pan of those myself!!! They look amazing and your photography is stunning!!!! I am definitely feeling the urge for brownies tonight:-)


Barbara @ Barbara Bakes March 16, 2012 at 1:48 pm

They look irresistible. Thin Mint is my hubs favorite too.


Sara Grace March 18, 2012 at 10:22 pm

EVERYONE is tempting me with tasty Girl Scout treats! I reallllly want to make these Thin Mint Brownies, but I’m not sure my Thin Mints will last until I’m ready to bake!


Dana B March 26, 2012 at 7:51 pm

yum!! I wish I had some thin mints left; we ate them all and I had to stop buying them at some point! :)


Alma April 3, 2012 at 5:19 pm

as a cookie mom I had tons of boxes last year and I made these brownies for co-workers several times.. we eat them with Vanilla ice cream on top as they’re still warm.. such a wonderful treat.


Leslie April 5, 2012 at 11:55 am


Do you think I could just bake these off in a mini muffin pan or regular muffin pan instead of using the biscuit cutter???


Janet April 30, 2012 at 10:39 am

I love that idea – it might simplify things. My guess is you would lessen the bake time a little (maybe by 5 minutes?). Have you tried it yet?


Jordan June 22, 2012 at 12:14 am

These look AMAZING!

Inexperienced baker question: Did you bake the brownie layer separately, then combine the graham cracker crust & brownie layer at the end after they cooled?


Jamie June 24, 2012 at 4:03 pm

Are you sure this is the correct recipe? There aren’t graham crackers in the Thin Mint Brownies.


Elizabeth July 11, 2012 at 6:07 pm

Hello my name is Elizabeth and I work at a small library in Uinta County, Wyoming. We are currently putting together a Death By Chocolate recipie book for an annual fundraising Death By Chocolate event we hold each year. I would like to talk to you about using the picture of your Thin Mint Brownies at the top of this page on one of the dividers in the recipie book. The easiest way to reach me is by email. Thank you for your time.


Jamie July 12, 2012 at 2:32 pm

You can reach me at jamie@mybakingaddiction.com.


Aya B. November 9, 2012 at 5:55 am

Oh My God
The Look amazing… Probably taste even better <3 <3 <3


Liz O December 9, 2012 at 4:34 pm

Hi! I Was looking for a recipe like this for ages, looks so yummy, but how can I subsitute the Thin Mint cookies as I live in México. I really hope you can help me. Regards


MBA December 26, 2012 at 9:37 am

I haven’t tried a substitution for these particular brownies but I can’t see why this would create an issue. If you try the substitution, stop back and let us know how they turned out! Thanks and have a great day!


Brian @ A Thought For Food March 7, 2013 at 8:48 am

When I was a child, I wasn’t the biggest Thin Mint fan (Samoas were more my style) but now we always get a box of them and put them in the freezer and then take them out each night to gnaw on them. Ok…. maybe that was all unnecessary info. Point being that I’m totally all ove these brownies. My sister would go kind of crazy for them too (she’s the Thin Mint lover in the family).


Jeannie March 12, 2013 at 12:14 am

I am a Girl Scout troop leader and made these for my book group tonight. A great treat even for those with a sophisticated palate.


John Allison February 28, 2014 at 5:11 pm

Made these using After Eights coz we don’t have Girl Scout cookies in UK. Put too much on the bottom layer so the mint thins were close to the surface. Result: great! Sometimes it’s good to make mistakes. But will be more careful next time. Mine were square which probably accords with my nationality! Great idea Jamie, thanks mate!


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