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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

By: Jamie
No ratings yet
Prep: 10 minutes
Cook: 35 minutes
Total: 45 minutes
Servings: 16

Ingredients

  • 4 ounces unsweetened chocolate coarsely chopped
  • ¾ cup butter cut into large cubes
  • 1 ¼ cups white sugar
  • 3 large eggs
  • 1 teaspoon pure vanilla extract
  • ¼ teaspoon peppermint extract
  • ¼ teaspoon fine grain salt
  • 1 cup all-purpose flour
  • 10 Thin Mint Cookies roughly chopped

Instructions 

  • 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.

Notes

- 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.

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64 Comments

  1. Melissa says:

    I made this for our first Girl Scout awards ceremony yesterday. I used 1 drop of peppermint essential oil instead of the the peppermint extract because I was out of that. They were very popular!

    1. Jamie says:

      So happy to hear you enjoyed the brownies, Melissa! Thanks so much for stopping by and leaving your feedback!
      -Jamie

  2. Nina says:

    This is the easiest and quickest brownie recipe I’ve ever made. Kudos to the developer of it. I substituted thin mint candy for the thin mint cookies and it was delicious. Don’t think I’ll ever make it any other way. I had peppermint schnapps so put a scant TB in the batter to give it a stronger peppermint flavor. I also removed them from the oven about 3 minutes before the cooking time ended. This is a keeper. Many thanks.

    1. Jamie says:

      So happy to hear you enjoyed the brownies, Nina! Thanks so much for stopping by and leaving your feedback!
      -Jamie

  3. Cass says:

    Do you think it would work to make these in a cupcake pan?

    1. Jamie says:

      Hi, Cass! Give it a shot! Reduce the cooking time by maybe 25 degrees, and check the brownies for doneness so they don’t over cook. Good luck!

  4. tina says:

    This recipe looks great, but as an English girl I have no idea what thin mint cookies are! Could you suggest an English alternative, please? Also, is white sugar what we call caster sugar? Thanks

    1. Jamie says:

      Thin mint cookies are a thin chocolate and mint cookie and I’m not sure of an English alternative but there are recipes for a homemade version if you try a google search. Caster sugar is not white sugar, it is powdered sugar, white sugar is granulated sugar. Hope this helps!

      -Jamie