As I stood in my kitchen, the aroma of melting chocolate and mint wafted through the air, instantly turning my day into a celebration. I couldn’t wait to create these Mint OREO® Cookies M&M’s® Brookies, a fantastic layered dessert that’s perfect for St. Patrick’s Day or any occasion when you want to impress your friends and family. Imagine biting into a chewy brownie layered with rich cookie dough, dotted with colorful green M&M’s® and the delightful crunch of mint OREO® Cookies. Not only are these brookies incredibly indulgent, but they come together quickly—making them a fabulous addition to your holiday festivities without the stress. Plus, their vivid colors and decadent flavors make them a true crowd-pleaser that will have everyone smiling. What fun twist will you add to make these brookies your own?

Why are these brookies a must-try?
Irresistible Flavor: The combination of chewy brownie and rich cookie dough creates a delightful dessert that bursts with flavor.
Festive and Fun: With colorful green M&M’s® and mint OREO® pieces, these brookies add a splash of celebration to any gathering.
Quick and Easy: Using store-bought mixes means less time in the kitchen and more time enjoying delicious treats with loved ones.
Endless Variations: For different occasions, simply swap the M&M’s® or OREO® flavors to make this dessert uniquely yours. Whether you’re a baking novice or a pro, these brookies will impress everyone! Don’t forget to check out these Maple Pecan Cookies or Pumpkin Cheesecake Cookies for more festive inspiration.
Mint OREO Cookies M&M’s Ingredients
Get ready to indulge in layered bliss with these Mint OREO Cookies M&M’s® Brookies!
For the Brownie Layer
• Brownie Mix – Use Betty Crocker™ Fudge Brownie Mix for a rich, fudgy foundation.
• Water – Follow the package directions for the exact measurement.
• Vegetable Oil – This adds moisture and keeps your brownies chewy.
• Eggs – Eggs provide structure while keeping the brownies soft.
For the Cookie Layer
• Cookie Mix – Choose Betty Crocker™ Sugar Cookie Mix for a deliciously sweet layer.
• Butter – Use softened butter for a rich and creamy texture.
• Egg – This helps bind the mixture, ensuring your cookies hold their shape.
Add-ins
• Green M&M’s® – 1 1/4 cups add festive color and sweetness to your brookies.
• OREO Cookies – 12 mint crème OREO® Cookies, cut into fourths for a burst of flavor and crunch.
With these ingredients, you’ll create the most delightful Mint OREO Cookies M&M’s® Brookies that are sure to be a hit at your next gathering!
Step‑by‑Step Instructions for Mint OREO Cookies M&M’s Brookies
Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (175°C). While the oven heats up, take a 9-inch square pan, line it with aluminum foil, and spray the foil with cooking spray to prevent sticking. This preparation will help ensure that your Mint OREO Cookies M&M’s Brookies come out perfectly.
Step 2: Make the Brownie Batter
Next, prepare the brownie batter using the Betty Crocker™ Fudge Brownie Mix. Follow the box’s instructions for adding water, vegetable oil, and eggs, thoroughly mixing until smooth. Spread the rich brownie batter evenly into the prepared pan and bake in the preheated oven for 32-35 minutes, or until set around the edges and a toothpick inserted into the center comes out mostly clean.
Step 3: Cool and Prepare Cookie Dough
After baking, take the brownie layer out and allow it to cool for about 10 minutes. During this time, prepare the cookie dough according to the instructions on the Betty Crocker™ Sugar Cookie Mix package. Remember to add in 1 cup of the green M&M’s® into the cookie dough for an extra pop of sweetness and color before combining the ingredients.
Step 4: Layer Cookie Dough and OREO® Pieces
Once the brownie layer has cooled slightly, drop half of the prepared cookie dough in chunks over the brownie layer. Next, evenly distribute half of the mint OREO® pieces, which you’ve cut into quarters, over the cookie dough. Press down gently to help create an even and cohesive top layer for your Mint OREO Cookies M&M’s Brookies.
Step 5: Finish Layering
Now, repeat the layering process with the remaining cookie dough and the remaining mint OREO® pieces, pressing gently again to ensure everything is nicely packed. For a festive finish, sprinkle the remaining 1/4 cup of green M&M’s® on top, creating a vibrant and inviting appearance before the brookies go back into the oven.
Step 6: Bake to Perfection
Return the layered concoction to the oven and bake for an additional 20-25 minutes until the cookie top is golden and lightly browned. Keep an eye on the dessert as it bakes—when it appears set and a toothpick inserted in the center comes out clean or with just a few crumbs, your Mint OREO Cookies M&M’s Brookies are ready to be taken out.
Step 7: Cool and Slice
Once baked, allow the brookies to cool in the pan for at least 30 minutes. This cooling step is crucial for achieving clean cuts. After they’ve cooled, lift the brookies out by the foil overhang, place them on a cutting board, and slice into squares. Serve and enjoy this incredible blend of brownies and cookies at your next gathering!

How to Store and Freeze Mint OREO Cookies M&M’s Brookies
Room Temperature: Store the brookies in an airtight container for up to 3 days to maintain freshness. This keeps them soft and chewy, ready to enjoy any time.
Fridge: For longer storage, keep the brookies in the fridge for up to a week. Make sure they are tightly wrapped to prevent drying out and absorbing odors.
Freezer: You can freeze the Mint OREO Cookies M&M’s Brookies for up to 3 months. Wrap each piece in plastic wrap and then place them in a freezer-safe bag to preserve flavor and texture.
Reheating: When ready to enjoy, simply thaw them at room temperature or warm them in the microwave for a few seconds to restore their gooey goodness.
What to Serve with Mint OREO® Cookies M&M’s® Brookies
Imagine a delightful gathering where each bite of dessert is paired with equally delectable accompaniments to create unforgettable moments.
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Vanilla Ice Cream: A scoop of creamy vanilla ice cream perfectly complements the fudgy brownie layers, balancing sweetness and texture.
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Whipped Cream: Light, fluffy whipped cream adds a soft touch, enhancing the indulgent dessert experience and cooling the rich flavors.
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Mint Chocolate Milkshake: An ice-cold mint chocolate milkshake echoing the brookies’ flavor profile makes for a lush and festive pairing any day of the year.
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Fresh Mint Leaves: The bright, refreshing notes of fresh mint leaves scattered on top not only add color but also enhance the minty flavor with a fragrant burst.
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Chocolate Drizzle: A warm, velvety chocolate drizzle over your brookies will elevate them to a fun dessert masterpiece, inviting everyone to dig in.
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Festive Fruit Salad: A colorful mix of lively seasonal fruits adds brightness and a refreshing contrast to the rich, indulgent brookies, keeping your palate excited.
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Coffee or Mocha: A steaming cup of coffee or a luscious mocha pairs beautifully, balancing sweetness and providing a warm, comforting experience with every bite of brookies.
Mint OREO Cookies M&M’s Brookies Variations
Feel free to get creative with your brookies to make them uniquely yours!
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Color Swap: Substitute orange M&M’s® for a vibrant twist that’s fun for Halloween or fall celebrations. Imagine the festive look they’ll add to your dessert table!
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Classic Touch: Use regular OREO® Cookies instead of mint for a nostalgic flavor that appeals to everyone. This timeless twist is sure to win hearts!
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Nutty Delight: Add chopped walnuts or pecans to the brownie layer for an added crunch. The combination of textures will elevate this dessert to new heights.
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Chocolate Lovers: Mix in chocolate chips with the cookie dough for an extra burst of chocolatey goodness. It’s a double chocolate dream that’s simply irresistible!
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Less Sweet Option: Opt for a sugar-free brownie mix and cookie mix if you’re looking to reduce sugar without missing out on the deliciousness. You’ll still enjoy a lovely treat while being mindful of sweetness.
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Minty Fresh: Enhance the mint flavor by drizzling melted mint chocolate on top of the brookies before serving. Each bite will have a refreshing minty kick.
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Spicy Twist: Add a dash of cayenne pepper to the brownie layer for a surprising kick. This flavor contrast adds a fun surprise that adventurous eaters will love!
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Texture Play: For a crunchy layer, try adding crushed graham crackers on top before baking. This gives a delightful texture that complements the rich brookies wonderfully.
For even more delicious cookie inspiration, don’t miss the chance to try these Funfetti Pan Banging Cookies or explore the unique taste of Maraschino Cherry Cookies. Enjoy experimenting with flavors and textures!
Make Ahead Options
These Mint OREO Cookies M&M’s Brookies are perfect for meal prep enthusiasts seeking to save time during busy occasions! You can prepare the brownie layer and refrigerate it for up to 3 days before adding the cookie layer. Just ensure it is completely cooled before wrapping it tightly in plastic wrap to maintain its moist texture. On the day you want to serve, simply mix up the cookie dough, layer it over the brownies with the OREO® pieces, and bake as directed. With these make-ahead options, you’ll have a decadent, crowd-pleasing dessert ready with minimal effort, allowing you to focus more on enjoying the festivities!
Expert Tips for Mint OREO Cookies M&M’s Brookies
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Cool for Layering: Allow the brownie layer to cool slightly before adding the cookie dough. This helps maintain distinct layers and prevents them from merging.
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Watch the Baking Time: Keep an eye on the baking time; every oven is different. Aim for a golden top and clean toothpick test.
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Use Quality Mixes: Stick with Betty Crocker™ mixes for consistent results. Their brownie and cookie mixes provide the perfect texture and flavor for these brookies.
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Layer Evenly: When layering the cookie dough and OREO® pieces, ensure you spread them evenly for balanced bites in every piece of the Mint OREO Cookies M&M’s Brookies.
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Customize Your M&M’s®: Feel free to experiment with different colors or flavors of M&M’s® for seasonal variations or personal preferences, making each batch unique!

Mint OREO Cookies M&M’s Brookies Recipe FAQs
Which type of M&M’s® should I use?
Absolutely! For the festive touch in Mint OREO Cookies M&M’s Brookies, I recommend using the green M&M’s® or any of your favorite colors. You can even switch them seasonally—like red and white for Christmas or pastel colors for Easter!
How should I store the brookies?
You can store the brookies at room temperature in an airtight container for up to 3 days. If you’d like to keep them longer, refrigerate them, wrapped tightly, for up to a week. This way, you can enjoy the soft and chewy texture anytime!
Can I freeze these brookies?
Yes, freezing is a great option! Wrap each piece of Mint OREO Cookies M&M’s Brookies tightly in plastic wrap, then place them in a freezer-safe bag for up to 3 months. To thaw, simply leave them at room temperature or microwave for a few seconds for that gooey goodness!
What if my brownie layer is too soft?
If your brownie layer appears too soft, it may need a bit more baking. Ensure you baked until the edges are set and a toothpick comes out with just a few moist crumbs. If it’s undercooked, simply pop it back in the oven for 2-3 minutes to firm it up, but keep a close eye on it!
Are OREO® Cookies safe for my pets?
Mint OREO® Cookies contain ingredients like chocolate and other additives that can be harmful to pets, particularly dogs. It’s best to keep these delicious brookies out of reach and enjoy them yourself—your furry friend will thank you by staying safe!
Can I use homemade mixes instead of store-bought?
Of course! If you prefer a more homemade touch, you can prepare your brownie and cookie layers from scratch using your favorite recipes. Just ensure to maintain similar texture and flavor to achieve the irresistible feel of Mint OREO Cookies M&M’s Brookies.

Mint OREO Cookies M&M's Brookies: A Festive Sweet Delight
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and prepare a 9-inch square pan with aluminum foil and cooking spray.
- Prepare the brownie batter using the Fudge Brownie Mix, following the package instructions for water, vegetable oil, and eggs. Bake for 32-35 minutes.
- Allow the brownie layer to cool for about 10 minutes while preparing the cookie dough with the Sugar Cookie Mix.
- Layer half of the cookie dough over the brownie layer, and then add half of the mint OREO® pieces. Press down gently.
- Repeat the layering process with the remaining cookie dough and mint OREO® pieces. Sprinkle remaining green M&M's® on top.
- Bake for an additional 20-25 minutes until the cookie top is golden and lightly browned.
- Allow to cool in the pan for at least 30 minutes before slicing into squares and enjoying!
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