Thin Mint Granola Bars

Crushed cookies add another dimension of flavor to homemade granola bars.  These Thin Mint Granola Bars are easy to make and perfect for breakfast or lunch boxes.

Thin Mint Granola Bars - mint cookies and a chocolate drizzle take these homemade granola bars over the top
I have a habit of buying cookies and hiding them under the cupboard.  My family is pretty used to my sugar buying, so they know that most of the “extra” food is for the crazy baking that happens in our house.

So a package of store brand Thin Mints is definitely not just for eating.  They know me a little too well for that.  The first thing my daughter asked when she saw those cookies was, “what are you putting those in?”.  She was right.  They were definitely not for eating…at least not the traditional way.  

Thin Mint Granola Bars - mint cookies and a chocolate drizzle take these homemade granola bars over the top

Girl Scout cookies and treats tend to be all the rage in March.  Now I have admitted before that I actually don’t buy real GS cookies that often.  (Don’t hold me to that…because we do get them every once in a while.)  This year we happened to make it through the season without spending $5 for 3 cookies.  I picked up some Keebler Grasshoppers because my mind was thinking through fun combos.

You see, I had this crazy thought.  A few weeks ago I made Cookies and Cream cookies that were super popular.  It had me thinking up new creations with that flavor combo.  Why not do mint cookies and cream this month?

Thin Mint Granola Bars - mint cookies and a chocolate drizzle take these homemade granola bars over the top

I have a homemade granola bar base that I use for all our bars.  My kids go through granola bars like crazy, so we are always creating fun new flavors to share.

These bars come together so quickly and only take about 20 minutes to bake.  Feel free to let them cool and eat them as is.  They taste just as good that way too.

But…this is me, and I have this crazy need to add more chocolate whenever I can.  So, these bars got a healthy dose of chocolate and green drizzle.  Hahaha!  Like how I said healthy and chocolate in the same sentence?  Sorry.  That made me giggle this morning…it’s the little things :-)

Now my mind is running with about 10 other “cookie” granola bars…I guess it’s time to bake another batch.

Thin Mint Granola Bars - mint cookies and a chocolate drizzle take these homemade granola bars over the top

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Thin Mint Granola Bars

Prep Time: 15 minutes

Cook Time: 18 minutes

Yield: 16 granola bars

Thin Mint Granola Bars

Homemade granola bars with a fun cookie twist. Melted chocolate gives them an extra sweet touch.


3/4 cup butter, softened
3/4 cup brown sugar
2 eggs
2 teaspoons vanilla
1 1/2 cups flour
2 1/2 cups quick oats
1/4 teaspoon salt
2 cups crushed Thin Mint cookies (or Keebler Grasshoppers)
1/2 cup green candy melts
1/2 cup chocolate chips
1 teaspoon shortening, divided


  1. Beat the butter and sugar until creamy. Add the eggs and vanilla and cream again. Stir in the flour, oats, and salt until mixed. Stir in the cookie crumbs.
  2. Press the mixture into a greased 9x13 baking pan. Bake at 350 degrees for 18-20 minutes. Let cool. Cut into 16 bars.
  3. Place the green candy melts and 1/2 teaspoon shortening in a microwave safe bowl. Heat 30 seconds and stir. Repeat. Stir until melted and creamy. Spoon into a plastic baggie with one tip cut off. Drizzle over the bars. Repeat with the chocolate chips and remaining shortening. Let set. Store in a sealed container.

 More recipes to use those Thin Mints or Grasshopper cookies in:


Thin Mint Fudge Brownies


Thin Mint Cupcakes

Fudge Mint Popcorn 4

Fudge Mint Popcorn


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  1. says

    Its good to know that Thin Mint addictions can be taken care of with Thin Mint knock offs year round! Even better, its good to know that delicious recipes like these granola bars can be made even when it isn’t Girl Scout cookie season! Chewy-crunchy granola bars that taste like thin mints have to be delicious!
    Wendy recently posted..Snickers BiscottiMy Profile

  2. says

    I love that your daughter knows you so well. Squirrel now asks permission to eat food before digging in. I only buy Thin Mints once a year; the rest of the year I buy Keebler Grasshopper cookies when they go on sale. This here is one creative recipe. Love it! Pinned.
    Jennie @themessybakerblog recently posted..Banana Maple GranolaMy Profile

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