Thin Mint Brownies

I have my last Girl Scout recipe for you and this one uses the most popular Girl Scout cookie, Thin Mints.  Thin Mints are not my favorite, but they are still very good and they are always a classic that I have to order.  Plus I always think that mint and chocolate go together really well.
This recipe is also perfect with St. Patrick’s Day coming up.  I always tend to make mint recipes for St. Patrick’s Day since mint is green.  I thought I would combine Thin Mint cookies with brownies and then use mint frosting for the top.  This recipe is perfect for St. Patricks’s Day or would be good for anytime.  It is so easy to make and you can always substitute Mint Oreos if Girl Scout cookies are not in season.
These Thin Mint Brownies were so delicious and I love how easy they are to make.  They start with a box brownie mix with whole Thin Mint cookies pressed into the brownie batter.  They are then baked and topped with a mint frosting and Thin Mint cookie crumbs.  I love all the mint in this recipe combined with the chocolate in the cookies and the brownies.  I hope you enjoy these delicious brownies!



Thin Mint Brownies


  • 1 box 13x9 sized brownies + ingredients on the back of the box
  • 30 Thin Mint cookies (or similar mint chocolate cookies)
  • 1 can Vanilla frosting
  • 1/2 teaspoon peppermint extract
  • 5-10 drops of green food coloring


  1. Preheat the oven to 350 degrees.  
  2. Mix the batter according to the directions on the box. 
  3. Pour 2/3 of the batter into a greased 9x13 inch pan.  Lay a single layer of Thin Mints side by side on top of the batter, slightly pressing them in. This will be about 24 Thin Mints.  Pour the remaining batter over the Thin Mint and spread evenly on top. 
  4. Bake for 25-30 minutes until a toothpick inserted into the center comes out clean.  Allow to completely cool.
  5. For the frosting, mix together the peppermint extract and food coloring in the frosting container.  Once the brownies are cool evenly spread on top of the brownies.  
  6. Crush the remaining Thin Mints and sprinkle the crumbs on top of the frosting.  Store in an airtight container.  Makes about 12 brownies.





  1. Holy.yum. I would demolish this!

  2. they do sound amazing! I LOVE thin mints, hand down my favorite cookie ever

  3. Mmmmm now this is my kind of brownie! You simply can not go wrong with anything Thin Mint!