Thin Mint Brownies

4.31 from 13 votes
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Thin Mint Brownies – Fudgy homemade brownies with thin mint cookies in each bite! Rich, chocolate-y and the perfect dessert.

If you know one thing about me, it is that brownies are pretty much my all time favorite dessert. I have had this Homemade Brownie recipe memorized since I was probably 7 years old. It was made so often when I was a kid, and is still my go-to.

And the only way to make brownies better is to mix in fun flavors! Today we are taking advantage of Girl Scout Cookie season and using Thin Mints.

thin mint brownies stacked on white plate

 

This recipe is so easy you are going to want to buy a box or two extra of the Thin Mints, because you are going to be making these over and over.

What You’ll Need

  • Butter
  • Unsweetened Chocolate
  • Sugar
  • Eggs
  • Flour
  • Salt
  • Baking Powder
  • Thin Mints

Pretty standard brownie ingredients that most people have on hand already. You can definitely use a store bought mix and follow the instructions for the brownie part on the box. Or you can even make my Homemade Brownie Mix and have that in your pantry for when cravings strike!

thin mint brownies in baking pan

How To Make Thin Mint Brownies

  1. Start by mixing together the melted butter with the chocolate until everything is nice and smooth.
  2. Beat in the eggs and sugar until they are fully incorporated.
  3. Stir in the flour, salt, and baking powder until everything is just combined.
  4. Next mix in your crushed Thin Mints.
  5. Bake for about 20-25 minutes until a tester comes out clean and they are done. Let them cool completely before serving.
brownie with thin mints on a white plate

Recipe Tips

  • As with all brownies, it is best to slightly under bake them. They will continue to cook for a little while after you take them out of the oven and they are sitting in the super hot pan. So if you pull them out when they are already completely baked, they will be over done by the time you go to serve them.
  • Don’t have Girl Scout Cookies. Keebler sells Grasshopper cookies in the regular grocery store that taste pretty much exactly the same. So you can make these cookies year round!
  • You can use a brownie mix if you don’t want to make them from scratch. Just follow the instructions on the box and fold in the amount of cookies listed in the recipe before baking.
  • Cover the brownies and store on the counter for 3-4 days.
thin mint brownies close up for pinterest

More Brownie Recipes to Try

cropped in close up of thin mint brownies
4.31 from 13 votes

Thin Mint Brownies

By Erin
Thin Mint Brownies – Fudgy homemade brownies with thin mint cookies in each bite! Rich, chocolate-y and the perfect dessert.
Prep: 10 minutes
Cook: 30 minutes
Total: 40 minutes
Servings: 16

Ingredients 

  • 1/2 cup butter, melted and cooled slightly
  • 4 oz unsweetened chocolate, melted
  • 1 cup granulated sugar
  • 2 whole large eggs
  • 3/4 cup all-purpose flour
  • 1/4 teaspoon salt
  • 1/4 teaspoon baking powder
  • 12 Thin Mint Cookies, crushed (about 1/2 a sleeve)

Instructions 

  • Preheat oven to 350º F. Prepare an 8×8 baking pan with parchment paper or grease well.
  • Mix together chocolate and melted butter until nice and smooth
  • . Add in sugar and eggs, and stir until eggs are fully incorporated.
  • Stir in flour, salt and baking powder. Mix until just combined.
  • Fold in crushed cookies. Pour into prepared baking pan
  • Bake for 25-30 minutes.
  • Remove from the oven and allow to cool completely before serving.

Notes

You could use a box mix if desired. Follow instructions on box, fold in cookies and bake according to the directions.

Nutrition

Serving: 1g | Calories: 205kcal | Carbohydrates: 23g | Protein: 3g | Fat: 12g | Saturated Fat: 7g | Polyunsaturated Fat: 4g | Cholesterol: 39mg | Sodium: 123mg | Fiber: 1g | Sugar: 15g

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Author: Erin
Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Course: Dessert Recipes
Cuisine: American
Servings: 16
Calories: 205
Like this recipe? Leave a comment below!

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About Erin S

Welcome to Dinners, Dishes, & Desserts where my love of food meets my busy life. My name is Erin and I’m a casual home cook who loves to feed people. On this blog, you’ll find hundreds of quick and easy recipes made mostly from scratch. My days are spent in the kitchen, creating new recipes to share with family and friends.

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61 Comments

  1. Don’t tell, but I robbed my dad of his thin mints… I love the buggers. These brownies really would be awesome right now.

  2. Aww… Girl Scout Cookies! I guess I’m kind of happy we don’t have them. I mean, they are pretty expensive right? Yup. That’s what I’m going to tell myself.

    And these brownies look great! I’m confused by the melted chocolate vs. cocoa powder discussion. I’ve always found the opposite! I’ll have to give melted chocolate brownies another try. 🙂