As the holiday season draws near, the irresistible aroma of freshly baked treats fills the air, bringing with it a sense of warmth and joy. This year, delight your family and friends with a dessert that’s not only incredibly simple to make but also bursts with festive cheer: our Chewy Christmas M&M Blondies. These aren’t just any blondies; they are a cherished family favorite, guaranteed to become a new tradition in your home. Crafted in a classic 8×8 inch pan, each bite promises a perfectly chewy texture, loaded with colorful holiday M&M’s and rich chocolate chips, making them the ultimate sweet indulgence for any holiday gathering.
If you’re looking for more delightful baking inspiration, be sure to explore our other popular recipes. Discover the classic goodness of these regular M&M blondies, indulge in the decadent richness of this white chocolate blonde brownies recipe, unleash your creativity with this marbled sugar cookie recipe, and savor the comforting spice of these chewy molasses cookies.

The Ultimate Christmas M&M Blondie Recipe for Festive Delights!
I truly mean it when I say these are the best Christmas M&M cookie bars you’ll ever bake. The holiday season inevitably turns us all into avid cookie enthusiasts, and these blondies absolutely deserve a top spot on your festive baking roster. They offer a delightful contrast to traditional cookies, providing a unique texture and flavor experience.
Imagine biting into a bar that is wonderfully dense, incredibly fudgy, and bursting with the vibrant colors and delightful crunch of holiday M&M’s, perfectly complemented by rich chocolate chips. These aren’t just delicious; they are a visual treat too! Their festive appearance makes them an ideal candidate for any holiday cookie exchange box, adding a splash of seasonal charm. Don’t just take my word for it; try them yourself this Christmas, and share your thoughts in the comment section below!
Why These Holiday Blondies Are a Must-Bake This Season
There are countless reasons why these Christmas M&M blondies should be at the top of your holiday baking list. They offer a perfect blend of ease, festive appeal, and irresistible flavor:
- Effortless Baking Experience: This recipe is incredibly straightforward, utilizing simple, readily available ingredients. You won’t need to hunt for obscure items or master complicated techniques, making it accessible for bakers of all skill levels.
- Ideal for Holiday Gatherings: If you’re tasked with bringing dessert to a holiday party or potluck, these sweet treats are your perfect solution. They are easy to transport, universally loved, and their festive colors instantly brighten any dessert table. They’re a guaranteed crowd-pleaser!
- A Joyful Activity for All Ages: Baking these blondies is a fantastic way to create lasting memories with your little ones during the most wonderful time of the year. The simple steps, especially adding the colorful M&M’s, make it an engaging and fun activity for kids, turning kitchen time into quality family time.
- Minimal Cleanup, Maximum Enjoyment: Who doesn’t love a recipe that promises fewer dishes? This is essentially a one-bowl recipe, drastically reducing your cleanup time. More time for holiday festivities, less time scrubbing pots and pans!
- Irresistibly Soft and Fudgy Texture: True to a classic blondie (or brownie), these bars are exceptionally soft and fudgy. We achieve this coveted texture through a careful balance of ingredients, resulting in a melt-in-your-mouth experience that distinguishes them from drier cookie bars.

Key Ingredients for These Delectable M&M Cookie Bars
Crafting these holiday M&M blondies requires a few essential ingredients, most of which you likely already have in your pantry. Each component plays a vital role in achieving their signature chewy, fudgy texture and rich flavor. For precise measurements, please refer to the detailed recipe card at the bottom of this post.
- Butter: You can use either salted or unsalted butter for this recipe. Softened butter is crucial for proper creaming with the sugar, which contributes to the blondies’ tender crumb. If using unsalted, you’ll simply need to add the specified amount of salt separately.
- Brown Sugar: This recipe exclusively calls for light brown sugar, deliberately omitting white sugar. Brown sugar is key to achieving that wonderfully moist and incredibly fudgy texture that defines a perfect blondie. Its molasses content adds depth of flavor and ensures a chewy result.
- Egg & Egg Yolk: A combination of one large egg and one egg yolk adds richness and helps bind the ingredients together, contributing significantly to the blondies’ chewiness and creating that sought-after crinkly top.
- Vanilla Extract: High-quality vanilla extract enhances all the other flavors, providing a warm, sweet aroma that is essential in any classic baked good. Don’t skimp on this!
- All-Purpose Flour: The foundation of our blondies, all-purpose flour provides the necessary structure without making them tough. Measure it correctly to avoid a dry or overly dense result.
- Salt: A pinch of salt is vital for balancing the sweetness and bringing out the complex flavors of the chocolate and M&M’s. It’s a flavor enhancer!
- Christmas M&M’s: These are the stars of the show! Their festive red and green colors make these blondies instantly recognizable as a holiday treat. You can use regular or mini M&M’s, and don’t hesitate to add a few extra for topping before baking for an even more vibrant look.
- Mini Chocolate Chips: While optional, mini chocolate chips melt beautifully throughout the blondies, adding an extra layer of chocolatey goodness that perfectly complements the M&M’s. They provide pockets of gooey chocolate in every bite.

Step-by-Step Guide: Crafting Your Own Christmas Cookie Bars
Making these delightful Christmas M&M blondies at home is surprisingly simple, designed for ease and enjoyment. Follow these steps for a perfect batch every time. Remember to consult the full, detailed instructions on the recipe card below for all the specifics!
- Preparation is Key: Begin by preheating your oven to 350°F (175°C). This ensures your oven is at the correct temperature when the batter is ready, promoting even baking. Line an 8×8 inch baking pan with parchment paper, leaving an overhang on two sides. This creates “handles” that will make it incredibly easy to lift the baked blondies out of the pan for clean slicing.
- Creaming Butter and Sugar: In a large mixing bowl, combine the softened butter and light brown sugar. Using an electric mixer (handheld or stand mixer), cream these two ingredients together on medium speed until they are light, fluffy, and well combined. This process incorporates air, contributing to the blondies’ tender texture.
- Adding Wet Ingredients: Next, add the large egg, the extra egg yolk, and the vanilla extract to the creamed butter and sugar mixture. Continue to whip the mixture for at least 3 minutes. This extended whipping is a crucial step that helps develop that beautiful, signature crinkly top often seen on perfectly baked blondies and brownies.
- Folding in Dry Ingredients (Carefully!): Gently fold in the all-purpose flour and salt. Mix just until the flour mixture completely disappears into the wet ingredients. It’s vital not to overmix the batter at this stage, as overmixing can lead to tough blondies. Once the dry ingredients are just incorporated, gently fold in the mini chocolate chips and the festive Christmas M&M’s.
- Baking to Perfection: Evenly spread the blondie mixture into your prepared 8×8 inch baking pan. Ensure the top is relatively smooth. Bake in the preheated oven for approximately 17 minutes. The exact baking time may vary slightly depending on your oven. The edges should be lightly golden, and a toothpick inserted into the center should come out with moist crumbs, not wet batter.
- Cooling for Optimal Texture: Once baked, remove the cookie bars from the oven. This next step is perhaps the most important for achieving the perfect chewy, fudgy consistency: allow them to cool down *fully* before attempting to slice into them. I typically let them cool for one to two hours at room temperature, depending on how warm my kitchen is. Cooling allows the bars to set completely, ensuring they slice cleanly and maintain their wonderful texture. Once fully cooled, slice into 16 equal squares, grab a tall glass of cold milk, and enjoy your delicious homemade holiday treat!





Exciting M&M Cookie Bar Variations to Try
While the classic Christmas M&M blondie is truly spectacular, these bars are incredibly versatile and can be customized to suit any occasion or personal preference. Here are some fun variations to inspire your next baking adventure:
- Seasonal M&M’s for Any Occasion: Easily adapt this recipe for other holidays or events by simply swapping out the Christmas-themed M&M’s for different colored varieties. Think pastel M&M’s for Easter, patriotic red, white, and blue for summer celebrations, or autumnal colors for Thanksgiving.
- Peanut Butter Perfection: For a delightful nutty twist, replace the traditional chocolate chips with an equal amount of peanut butter chips. This creates a wonderfully rich and savory-sweet flavor profile that peanut butter lovers will adore.
- Crunchy Additions: Introduce an extra layer of texture by mixing in your favorite chopped nuts. Walnuts, pecans, or even almonds would add a satisfying crunch that complements the chewy blondie base beautifully. Toasting the nuts lightly beforehand can enhance their flavor even further.
- Peanut M&M’s Power-Up: If you enjoy the combination of chocolate and peanuts, substitute the regular M&M’s with peanut M&M’s. This adds an extra dimension of flavor and a substantial crunch to each bite, making the blondies even more satisfying.
- White Chocolate Wonder: For a different kind of chocolate experience, swap out the semi-sweet chocolate chips for white chocolate chips. This will create a sweeter, creamier contrast to the brown sugar base and M&M’s, offering a truly decadent treat.

Frequently Asked Questions – FAQ
How to store these M&M bars?
Proper storage is key to keeping these M&M blondies fresh and delicious for as long as possible. Once completely cooled, store them in an airtight container at room temperature for up to 4 days. This prevents them from drying out and maintains their chewy texture. For an extra treat, I love to pop a blondie in the microwave for just a few seconds before enjoying it; this makes the chocolate chips and M&M’s gloriously gooey and warm, almost like they just came out of the oven!

Can I freeze these M&M Christmas blondies?
Absolutely! These Christmas M&M blondies are fantastic for making ahead, which is perfect for holiday planning. You can easily freeze them to enjoy later. Once the blondies are completely cool, cut them into individual squares. Place them in an airtight container or a heavy-duty freezer bag, separating layers with parchment paper to prevent sticking. They will stay fresh in the freezer for up to 3 months.
When you’re ready to indulge, thaw them overnight in the refrigerator or for a few hours on the countertop at room temperature. And, of course, for that ultimate warm and gooey experience, you can always microwave a thawed blondie for about 10-15 seconds before serving. This makes them taste freshly baked!

Christmas M&M’s Blondies Recipe / Holiday Blondies

Holiday M&M Blondies
Print Recipe
Equipment
Ingredients
- 1/2 cup butter softened
- 1 cup light brown sugar
- 1 large egg
- 1 egg yolk
- 2 tsp vanilla extract
- 1 1/2 cup all-purpose flour
- 1 tsp salt
- 3/4 cup Christmas M&M’s regular or mini, extra for topping (optional)
- 1/2 cup chocolate chips optional
Instructions
- Preheat the oven to 350°F (175°C) and line an 8×8 inch baking pan with parchment paper, leaving an overhang for easy removal.
- In a large bowl, cream together the softened butter and brown sugar on medium speed until well combined and fluffy.
1/2 cup butter, 1 cup brown sugar
- Add the large egg, egg yolk, and vanilla extract. Whip the mixture for at least 3 minutes; this helps create that beautiful crinkly top.
1 large egg, 1 egg yolk, 2 tsp vanilla extract
- Gently mix in the all-purpose flour and salt until just combined and no streaks of flour remain. Be careful not to overmix the blondie batter. Fold in the chocolate chips and Christmas M&M’s.
1 1/2 cup AP flour, 1 tsp salt
- Spread the blondie mixture evenly into the prepared 8×8 inch baking pan and bake for 17-20 minutes, or until the edges are lightly golden and a toothpick inserted into the center comes out with moist crumbs.
- Once baked, remove the blondies from the oven. It is crucial to allow them to cool down completely to room temperature before slicing. This usually takes 1-2 hours. Cooling fully allows the bars to set properly, resulting in a perfectly chewy and fudgy texture. Slice into 16 equal squares and enjoy!
3/4 cup Christmas m&m’s, 1/2 cup chocolate chips
Notes
- Up to 5 days in an airtight container at room temperature.
- Up to a week in an airtight container in the refrigerator.
- For longer storage, freeze them in an airtight container for up to 2 months. Thaw at room temperature or in the fridge before serving.
Nutrition Information
Nutrition information is automatically calculated and should only be used as an approximation. Individual results may vary based on ingredients and preparation methods.

Shop Essential Baking Tools and Ingredients
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To help you create these delightful M&M Christmas blondies with ease, here are some recommended products. From the perfect baking pan to key ingredients, these items will ensure your baking experience is smooth and successful:
Loved These Holiday M&M’s Blondies? Don’t Forget to Pin for Later!
If you’re as enchanted by these festive and flavorful M&M’s Holiday Blondies as we are, make sure to save this recipe for future baking endeavors! Pin it to your favorite holiday dessert boards on Pinterest so you can easily find it year after year. It’s the perfect treat to bring holiday cheer to any occasion.


