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As I stood in my kitchen, a flurry of memories came rushing back—the scent of warm sugar cookies wafting through the air during our holiday family gatherings. This inspired my latest creation: Cozy Christmas Cookie Bars with M&Ms, a delightful twist on traditional holiday baking. Not only are these bars easy to make—perfect for those bustling days leading up to Christmas—but they also bring a cheerful pop of color and flavor to any gathering. With the flexibility to customize mix-ins, whether you’re eyeing gooey chocolate chips or vibrant sprinkles, there’s something here for everyone, including plenty of options for gluten-free or vegan friends. Ready to fill your home with delicious aromas while indulging in these festive treats? Let’s dive in!

Why Are These Cookie Bars So Irresistible?
Cozy Comfort: These Cozy Christmas Cookie Bars offer that warm, inviting feeling we all love during the holidays, making them a perfect addition to your festive spread.
Quick and Easy: Crafted in just a few simple steps, you won’t need to spend hours in the kitchen, leaving more time for holiday cheer!
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Customizable Options: Whether you’re a fan of gooey chocolate chips or want to add colorful sprinkles, you have the freedom to make these bars truly your own.
Perfect for Sharing: These bars are a hit at holiday parties and make fantastic gifts, ensuring everyone gets a slice of joy.
Diet Friendly: With optional substitutions for vegan and gluten-free diets, there’s no excuse to miss out on this delightful treat!
Memorable Taste: Rich, buttery goodness paired with vibrant M&Ms creates a flavor explosion that will have everyone asking for seconds (or thirds!).
If you’re looking for more delicious treats, check out my Christmas Cookie Bars or try making some scrumptious Cookie Cheesecake Bars for even more festive fun!
Cozy Christmas Cookie Bars Ingredients
• Get ready to make some holiday magic!
For the Cookie Base
- Unsalted Butter – Creates a rich, buttery flavor; make sure it’s softened to room temperature for easy mixing.
- Brown Sugar – Adds sweetness and moisture for a chewy texture; can be substituted with granulated sugar if needed.
- Eggs – Provide binding; essential for keeping the bars together.
- Vanilla Extract – Enhances overall flavor, making every bite delicious.
- All-Purpose Flour – Offers structure; it’s key for achieving that perfect chewy texture.
- Baking Powder – Acts as a leavening agent to help the bars rise.
- Salt – Balances out the sweetness and enhances the flavors.
For the Festive Touch
- M&Ms – Introduces a colorful and festive vibe; feel free to swap with chocolate chips or nuts for variety.
- Sprinkles – An optional treat that adds visual appeal and extra holiday cheer.
Embrace the warm comforts of these Cozy Christmas Cookie Bars as you gather with loved ones, creating sweet memories over delicious homemade delights.
Step‑by‑Step Instructions for Cozy Christmas Cookie Bars
Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (175°C). While the oven warms up, line a 9×13-inch metal pan with aluminum foil, ensuring you leave some overhang for easy removal later. Lightly grease the foil with cooking spray or butter to prevent the bars from sticking, setting the stage for your delicious Cozy Christmas Cookie Bars.
Step 2: Cream Butter and Sugar
In a large mixing bowl, combine the room-temperature unsalted butter and brown sugar. Using an electric mixer, cream them together on medium speed until the mixture is light and fluffy, about 3-5 minutes. This step is crucial for achieving the rich, tender texture in your Christmas Cookie Bars, so be sure to create a well-blended mixture before proceeding.
Step 3: Incorporate Eggs and Vanilla
Next, add the eggs, one at a time, mixing well after each addition to ensure they are fully incorporated into the batter. Pour in the vanilla extract and continue to mix until everything is smooth and creamy. The combination of eggs and vanilla will enhance the flavor and texture of your cozy treat, creating a delightful base for the bars.
Step 4: Combine Dry Ingredients
In a separate bowl, whisk together the all-purpose flour, baking powder, and salt. Gradually add this dry mixture to the wet ingredients, mixing on low speed just until combined to avoid overworking the dough. The flour mixture is essential in creating the structure of your Cozy Christmas Cookie Bars, so be gentle to maintain their chewy goodness.
Step 5: Fold in Festive Additions
Gently fold in the vibrant M&Ms and sprinkles with a spatula or wooden spoon, reserving a handful of each for topping later. This step adds that festive pop and delightful crunch, truly bringing your Cozy Christmas Cookie Bars to life. Ensure the mix-ins are evenly distributed for a colorful treat in every bite.
Step 6: Spread the Dough
Transfer the cookie dough into the prepared pan, using a spatula to spread it evenly across the bottom. Press the mixture down slightly to compact it, ensuring it fills the corners of the pan. This will help your cookie bars bake evenly and retain their chewy texture, creating a uniform and indulgent treat.
Step 7: Bake to Perfection
Place the pan in the preheated oven and bake for 22-25 minutes. Keep a close eye on the bars; they should be golden brown around the edges and still soft in the center when done. This perfect baking time ensures you achieve that ideal chewy consistency in your Cozy Christmas Cookie Bars, just in time for the holidays.
Step 8: Cool and Slice
Once baked, remove the pan from the oven and allow the bars to cool in the pan for 10-15 minutes. Then, using the foil overhang, lift the bars out and transfer them to a wire rack to cool completely. Once cooled, slice them into squares and serve to share the joy of your delightful Cozy Christmas Cookie Bars with family and friends.

What to Serve with Cozy Christmas Cookie Bars
The holiday spirit shines even brighter when you pair these delightful cookie bars with the perfect accompaniments to enhance your festive gatherings.
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Rich Hot Chocolate: This creamy, chocolatey drink is a warm hug in a mug, perfectly complementing the sweet and chewy bars for a cozy festive experience.
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Vanilla Ice Cream: A scoop of this cool, creamy delight balances the rich flavors of the cookie bars, creating a luscious melt-in-your-mouth combination.
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Fresh Berries: The tartness of strawberries or raspberries cuts through the sweetness, providing a refreshing contrast that brightens your dessert table.
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Holiday Fruit Salad: A medley of colorful fruits adds a vibrant and healthy touch, making your dessert table more inviting while enhancing the cheer of the season.
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Spiced Apple Cider: Serve this warm, fragrant drink to warm hearts and homes; the spices harmonize beautifully with the rich flavors of the cookie bars.
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Gingerbread Cookies: Keeping the holiday theme alive, serve these alongside for a delightful variety of textures and flavors that will entertain your taste buds.
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Peppermint Bark: With its festive crunch and refreshing flavor, this treat echoes the holiday spirit and creates a cheerful spread when served with the cookie bars.
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Chai Tea: The warming spices of chai tea offer a comforting pairing, accentuating the holiday flavors and inviting snuggles on cooler winter nights.
Elevate your festive celebrations with these thoughtful pairings alongside your Cozy Christmas Cookie Bars, creating sweet and memorable moments with loved ones!
Cozy Christmas Cookie Bars Variations & Substitutions
Feel free to explore these delightful twists and personalizatons to make your Cozy Christmas Cookie Bars truly your own!
- Gluten-Free: Use a gluten-free all-purpose flour blend for a gluten-free version that retains the same great taste and texture.
- Vegan: Replace eggs with a flaxseed meal mixture (1 tablespoon flaxseed meal + 2.5 tablespoons water) and use plant-based butter for a vegan-friendly treat!
- Tropical Twist: Add 1 cup of shredded coconut for a tropical touch that pairs wonderfully with the festive flavors.
- Spicy Surprise: Incorporate 1 teaspoon of cinnamon or nutmeg to add a warm spice that evokes the feeling of holiday cheer.
- Nutty Delight: Swap out M&Ms for chopped nuts or your favorite nut butter for a crunchy texture that adds a nutty richness.
- Fruit Fusion: Stir in dried fruits like cranberries or apricots for a chewy, fruity burst that complements the bars beautifully.
- Minty Goodness: Use peppermint extract in place of vanilla for a fresh, minty flavor that’ll remind you of candy canes and winter festivities.
If you’re seeking more ideas or variations for your holiday baking, try my delicious Sweet Candy Cookie for a rich, indulgent treat or explore the vibrant flavors of Lemon Raspberry Cookie for a zesty twist!
Make Ahead Options
These Cozy Christmas Cookie Bars are perfect for meal prep enthusiasts looking to save time during the bustling holiday season! You can make the cookie dough up to 24 hours in advance by mixing all the wet and dry ingredients together, then simply refrigerate the dough in an airtight container. When you’re ready to bake, let the dough sit at room temperature for about 15 minutes before spreading it into the prepared pan and baking as directed. For even longer storage, these bars freeze beautifully when wrapped tightly; just thaw overnight in the refrigerator and cut them into squares to enjoy. By prepping ahead, you’ll have delicious, homemade treats on hand, ready to share with loved ones!
Expert Tips for Cozy Christmas Cookie Bars
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Room Temperature Ingredients: Ensure your butter and eggs are at room temperature. This helps them blend more smoothly, giving your Cozy Christmas Cookie Bars the best texture.
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Avoid Over-Mixing: Once you add the flour, mix until just combined. Over-mixing can lead to tough bars instead of the desired chewiness.
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Perfect Baking Time: Keep an eye on your bars! They should be golden brown around the edges and soft in the center to achieve that gooey, melt-in-your-mouth texture.
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Cool Before Slicing: Let the bars cool completely before slicing. This helps them set and maintain that perfect chewy consistency throughout.
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Custom Mix-ins: Feel free to get creative with mix-ins! While M&Ms are festive, you can swap them for nuts or chocolate chips to suit your taste while still enjoying the glorious comfort of these Cozy Christmas Cookie Bars.
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Storage Tips: Store any leftovers in an airtight container at room temperature for up to 4 days, or refrigerate them for a week to maintain their delightful taste.
How to Store and Freeze Cozy Christmas Cookie Bars
Room Temperature: Store the bars in an airtight container at room temperature for up to 4 days. This preserves their chewy texture and flavor.
Fridge: If you prefer them chilled, place the bars in the fridge for up to a week, ensuring they remain in an airtight container to maintain freshness.
Freezer: For longer storage, tightly wrap the bars in plastic wrap and then place them in a freezer-safe bag. They can last in the freezer for up to 3 months without losing their deliciousness.
Reheating: When ready to enjoy, thaw at room temperature or heat for a few seconds in the microwave for a warm, cozy treat that melts in your mouth!

Cozy Christmas Cookie Bars Recipe FAQs
What kind of butter should I use for the cookie base?
I recommend using unsalted butter for these Cozy Christmas Cookie Bars to allow you to control the saltiness of the recipe. Make sure the butter is at room temperature for easy mixing. This helps create that light and fluffy texture that makes these bars so irresistible!
How should I store my cookie bars?
Keep your Cozy Christmas Cookie Bars in an airtight container at room temperature for up to 4 days. If you want to extend their freshness, you can refrigerate them for up to a week, but make sure they remain in an airtight container to prevent them from drying out.
Can I freeze these cookie bars for later?
Absolutely! To freeze your Cozy Christmas Cookie Bars, first, let them cool completely. Then, wrap them tightly in plastic wrap before placing them in a freezer-safe bag. They can be enjoyed for up to 3 months in the freezer. When you’re ready to eat, simply thaw them at room temperature or pop them in the microwave for a few seconds!
What should I do if my cookie bars come out too cakey?
If your Cozy Christmas Cookie Bars have turned out cakey, it’s likely that they were over-mixed or baked too long. To prevent this, mix the dough just until combined after adding the flour, and keep an eye on the baking time! You want them to be golden on the edges but still soft in the center for that chewy texture.
Are there any allergy considerations for this recipe?
Yes! If you’re making these bars for someone with allergies, keep in mind that the recipe contains butter, eggs, and all-purpose flour. For a gluten-free option, you can use a gluten-free all-purpose flour blend. Additionally, you can substitute eggs with a flaxseed meal mixture (1 tablespoon of flaxseed meal mixed with 2.5 tablespoons of water for each egg) to create a vegan version. Always double-check ingredient labels for potential allergens!

Cozy Christmas Cookie Bars That Melt in Your Mouth
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C) and line a 9x13-inch metal pan with aluminum foil, greasing it lightly.
- In a large mixing bowl, cream together the unsalted butter and brown sugar until light and fluffy, about 3-5 minutes.
- Add the eggs, one at a time, mixing well after each addition, then mix in the vanilla extract until smooth.
- In a separate bowl, whisk together the flour, baking powder, and salt, then gradually add to the wet ingredients until combined.
- Fold in the M&Ms and sprinkles, reserving some for topping later.
- Spread the dough evenly in the prepared pan and press down slightly to compact.
- Bake for 22-25 minutes until golden brown around the edges and soft in the center.
- Let the bars cool in the pan for 10-15 minutes, then lift them out using the foil and cool completely before slicing.







