Oreo Mint Cookie Bars Recipe
Are you looking for a dessert that tastes like a cool winter breeze? This Oreo Mint Cookie Bars Recipe will make your sweet tooth tingle with happiness!
The combo of fresh mint and decadent chocolate makes this easy Oreo dessert something you’ll want to make repeatedly. Each bite offers crunchy Oreo pieces and sweet mint M&Ms wrapped in a soft, buttery cookie base.
Your kitchen will smell amazing while these bake up!

That green and brown marbled look makes these bars look amazing! The chunks of cookies and candies create the most beautiful patterns on top. Everyone will think you spent hours making them!
Oreo Mint Cookie Bars Recipe
Thanks to the butter and brown sugar in the cookie base, it has the same soft, chewy texture as your favorite bakery cookie bars.
Adding chopped Mint Oreos gives these bars their signature taste. Some pieces stay big and chunky, while others blend into the dough. Every bite brings a new surprise!
Those pretty mint M&Ms aren’t just for looks, too. They add bursts of cool mint flavor throughout the bars. Plus, their green color makes these treats perfect for holidays or parties!
The bars bake thick and golden, with all those yummy mix-ins creating a treat that’s way better than plain old cookies. Your friends won’t believe you made these at home!

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Why do cookie bars crack on top?
Those cracks on top mean you’ve done everything right! They happen when the top sets while the inside is baking and rising—like when brownies get that perfect crackly top!
The key is not to worry about those little cracks. They add character and show that your bars have that unique chewy texture inside. Plus, they make perfect spots for all those toppings to nestle into!
Those extra M&Ms and Oreo pieces we sprinkle on top find their way into these natural little spaces, making every bite even more delicious.
Specialty Ingredients:
The following ingredients are affiliate links on Amazon because they may be a bit hard to find in your normal store. I wanted you to be able to see exactly which things we are using.
Reminder, not all ingredients in the Oreo Mint Cookie Bar Recipe are linked above, just the ones that may be a bit difficult to find or that you might be unsure of what to look for.
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Must Have Resources:
When making these Mint Cookie Squares at home, you really need to have the following Amazon affiliate tools on hand.
Make it a Meal:
Planning meals doesn’t have to be complicated! Adding a sweet treat to your dinner menu excites everyone for the whole meal. These bars fit perfectly into any meal plan as the grand finale!
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Here’s a foolproof dinner combo that ends with these fantastic bars:
Main Dish: Baked Chicken and Rice Recipe
Vegetable Side: Thai Sweet Asparagus Recipe
Starch Side: Loaded Mashed Potatoes Recipe
Refreshing Drink: Raspberry Lemon Punch Sorbet Recipe

Best Dessert Cookie Bar Recipes:
Now that you’ve mastered these minty delights, your baking adventure is beginning! These cookie bar recipes will keep your sweet tooth happy all year long!
Get ready for fall with these colorful Festive and Sweet Candy Corn Cookie Brownie Bars!
Magic Cookie Bars bring seven layers of pure happiness to your dessert table!
These Chewy Gingerbread Bars taste like Christmas in every bite!
Spread the love with adorable Valentine Cookie Bars!
Everyone can enjoy these Gluten Free Chocolate Chip Cookie Bars!
Bring the campfire inside with these incredible S’Mores Cookie Bars Recipe!
Double the fun with this OREO Brownie Cookie Bars Recipe!

Why do my cookie bars come out too gooey?
Gooey cookie bars are usually a result of incorrect baking time and temperature. These thick bars need 40 minutes to set correctly in the middle, even if the top looks done earlier.
Your oven temperature can also make a big difference! I recommend using an oven thermometer because many ovens run hot or cold. If the temperature is off, you might have unevenly cooked bars.
The parchment paper liner is also crucial. It prevents the bottom from getting too dark while the middle sets. If you skip it, you might pull the bars out too early, thinking they’re done when the bottom browns.
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More Mint Recipes:
- OREO Mint Ice Cream Recipe
- Chocolate Mint Crackle Cookies Recipe
- Fudgy Andes Mint Brownies Recipe
- Andes Mint Puppy Chow Recipe
- Alcohol-Free Mint Grapefruit Mimosa Recipe

Oreo Mint Cookie Bars Recipe
Equipment
Ingredients
- 2 Cup(s) of melted unsalted sweet cream butter
- 2 ½ Cup(s) of sugar
- 1 Cup(s) of packed brown sugar
- 4 eggs
- 2 egg yolk
- 4 tsp vanilla extract
- 5 Cup(s) of flour
- 4 tsp cornstarch
- 1 tsp baking powder
- 2 tsp salt
- 2 Cup(s) of chocolate chips
- 2 Cup(s) of Mint M&M’s
- 24 chopped Mint Oreo cookies
Instructions
- Preheat the oven to 350 degrees.
- Mix the melted butter, sugar, and brown sugar using a mixer until combined.
- Mix in the eggs and egg yolk one at a time. Be sure to mix well after adding each egg.
- Add and stir in the vanilla.
- Mix the flour, cornstarch, salt, and baking powder in a different bowl.
- Gradually mix the dry ingredients into the wet ingredients until fully combined.
Mix in 1 1/2 cups of the chocolate chips, 1 1/2 cups of the M&M's, and 1/2 of the chopped Oreo cookies.- Spread the batter into a baking dish and top with the rest of the candy, chocolate chips, and cookies.
Put the pan in the oven and bake for 40 minutes or until the edges turn golden brown. - Let the dessert bars cool before cutting.
Nutrition
If you’re already making Oreo goodies, take it to the next level with these easy and silly Reindeer Poop truffles—they’re a holiday hit every time!
These Oreo Mint Cookie Bars are an absolute dream! The rich, fudgy base, the crunchy Oreo pieces, the creamy mint chocolate chips – it’s a party in your mouth with every bite. Serve them up at your next get-together!