M&M Christmas Cookie Bars Recipe

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M&M Christmas Cookie Bars Recipe! The BEST Christmas Cookie Bars with Cake Mix! Easy M&M Cookie Bars for a FUN Holiday Dessert!

Festive cookie bars topped with red and green M&M's, white icing, and sprinkles are arranged on a plate and a table.

I am LOVING this M&M Christmas Cookie Bars Recipe!

Whip up these yummy M&M Christmas Cookie Bars for your friends and family this Holiday Season! Soft and chewy Cookie Bars with Cake Mix – making these SUPER EASY! Just watch how fast they get eaten!

A close-up of a hand holding a Christmas Cookie Bar square covered in white icing, colorful sprinkles, and red and green candy-coated chocolates.

You will also want to try these No Bake Christmas Treats that are perfect for sharing with friends!

Plus, here are some Easy Christmas Cookie Recipes to add to your cookie boxes!

A close-up of colorful Christmas Cookie bars topped with white drizzle, red and green candies, and festive sprinkles, surrounded by red ornaments and ribbon.

Here’s why you will love this M&M Christmas Cookie Bars Recipe

  • Cookie Bars with Cake Mix! My FAVORITE way to make treats for the Holidays! Easy and little mess!
  • I LOVE the White Chocolate Chips and M&Ms throughout these Christmas Cookie Bars! YUM!
  • Christmas M&Ms, Holiday Sprinkles, and White Chocolate Chips are packed in this Christmas treat! GREAT for the Holidays!

Christmas Cookie bars topped with red and green candy-coated chocolates, white drizzle, and colorful sprinkles, arranged on a wooden surface near a red plate.

Here’s what you will need for this M&M Christmas Cookie Bars Recipe!

You’ll also need:

  • Package of White Cake Mix, Butter, and Eggs
  • White Chocolate Chips, Holidays M&Ms, and Sprinkles!

A pile of Christmas Cookie bars topped with red and green candy-coated chocolates and white chocolate drizzle on a table.

Christmas Cookie Bars

Christmas Cookie Bars are such a fun and different treat idea for the Holidays instead of Christmas Cookies! Just press the Cookie Dough into a baking dish, bake in the oven, and then slice into squares! Easy and DELISH!

A close-up of a Christmas Cookie Bar treat topped with colorful red, green, and white candy pieces, drizzled with white icing. The treat has a bite taken out of it.

M&M Cookie Bars Recipe

Holiday M&Ms are a MUST on this M&M Cookie Bars Recipe! I just love the POP of color they bring – making the Christmas Cookie Bars super festive for the Holidays! 

Got another holiday you’re celebrating? You can totally switch out the M&Ms and Sprinkles to match whatever you’re needing!

A close-up of colorful Christmas Cookie bars topped with red and green M&Ms and a drizzle of white icing.

Cookie Bars with Cake Mix

If you love making treats with Cake Mixes, then this Cookie Bars with Cake Mix is just right for you! I love the mess-free treats, especially during the Holidays when I’m making treats all the time!

So any chance I get to make Desserts from Cake or Brownie Mixes, I am on it! Easy Desserts with little to no mess!

Also, I am ALL ABOUT Easy No Bake Christmas Treats! No need for an oven and easy to whip up!

Christmas cookie bars topped with red and green M&Ms, white drizzle, and colorful sprinkles, placed on a table with red ornaments and a festive ribbon.

How to make this M&M Christmas Cookie Bars Recipe!

First, start by lining a 9×13″ baking dish with parchment paper and preheating your oven to 350 degrees.

A glass bowl with cracked eggs, flour, and liquid ingredients is surrounded by bowls of colorful sprinkles, green and red candies, and candy-striped straws on a white marble surface.

Then, add the cake mix, melted butter, and eggs to a mixing bowl and sit until combined.

A hand holds a bowl filled with white chocolate chips. In the background, there are bowls of red and green candies and a blurred baking setup.

Next, add in the 3/4 cup white chocolate chips.

A bowl of cookie dough mixed with red and green candy-coated chocolates on a countertop, surrounded by various baking ingredients and tools.

Now it’s time to add the holiday sprinkles and M&Ms to the dough. Mix all the ingredients together until combined.

Close-up of a tray of unbaked cookie dough mixed with red and green candies and white chocolate chips.

Next, pour the cookie dough into the baking dish (lined with parchment paper) and press the dough down until it is evenly spread out in the pan. 

Time to bake! Bake the Christmas Cookie Bars in the oven for 20 minutes. 

A tray of cookie bars topped with red, green, and white chocolate candies is cut into rectangular pieces, surrounded by a few scattered candies and two striped straws.

Once out of the oven, let it cool for 15 minutes in the hot pan. Then you can remove it from the pan and let it cool on a cooling rack for about 30 minutes.

Next, you can slice up your Christmas Cookie Bar into 12 squares.

A bowl of melted white chocolate with multi-colored M&Ms scattered around it on a white surface.

While the cookie bars are cooling, you can melt the rest of the white chocolate chips in the microwave. (Melt for 30 second increments until melted.)

Close-up of a fork drizzling white icing onto a cookie topped with colorful candy pieces.

Next, use a fork to drizzle the melted white chocolate over each cookie bar.

Overhead view of Christmas Cookie bars topped with green and red M&M candies and white drizzle. A small bowl of colorful sprinkles and two red-striped straws are on the side.

Finally, you can top the cookie bars with any remaining M&Ms, White Chocolate Chips, and sprinkles.

Once they are cooled completely, you can serve them up! ENJOY!

A baking setup with bowls of cake mix, green and red candies, white chocolate chips, sprinkles, two eggs, and a stick of butter on a white marble surface.

M&M Christmas Cookie Bars Recipe

Yields: 12 Bars
Preparation time: 10 minutes
Baking time: 20 minutes
Additional time: 20 minutes + drying time

Ingredients:
1 package of white cake mix (Betty Crocker super moist white cake mix 14.25 ounce box)
⅓ cup melted butter
2 whole large eggs
1 1/2 cups white chocolate chips, divided
1 cup holiday M&Ms, divided
½ cup sprinkles, divided

Directions:
Preheat the oven to 350 degrees and line a 9×13” glass baking pan dish with parchment paper.
In a medium sized mixing bowl combine the cake mix, melted butter, and eggs together.
Stir in 3/4 cup of white chocolate chips, 3/4 cup M&Ms, 1/4 cup of sprinkles.
Spoon the dough into the baking dish that has been lined with parchment paper and spread the dough evenly in the pan (the dough will be sticky).
Bake in the oven for 20 minutes.
Remove from the oven and let cool in the baking dish for 15 minutes. After 15 minutes, remove the parchment paper from the baking dish and let the cookie bar cool on a cooling rack for 30 minutes.
Cut the cookie bar into 12 pieces.
After the cookie bars are cooled, heat the remaining white chocolate in the microwave in 30 second increments until melted.
Separate the cookie bars a little and then drizzle the white chocolate over the cookie dough bars using a fork. Top with remaining M&Ms, white chocolate chips, and sprinkles. Let cool completely.

Notes:
● Cookie bars can be stored at room temperature in an airtight container for up to 1 week.
● Change up the color of M&Ms and sprinkles for any holiday.
● I used a pizza cutter to cut my cookie bars, but you can also use a knife.

Festive cookie bars topped with red and green M&M's, white icing, and sprinkles are arranged on a plate and a table.

M&M Christmas Cookie Bars Recipe

Yield: 12 Bars
Prep Time: 10 minutes
Cook Time: 20 minutes
Additional Time: 20 minutes
Total Time: 50 minutes

M&M Christmas Cookie Bars Recipe! The BEST Christmas Cookie Bars with Cake Mix! Easy M&M Cookie Bars for a FUN Holiday Dessert! Make these Christmas Cookie Bars with a box of cake mix, M&Ms, and holiday sprinkles! An easy recipe you can make in minutes for any crowd and perfect for a holiday table!

Ingredients

  • 1 package of white cake mix (Betty Crocker super moist white cake mix 14.25 ounce box)
  • ⅓ cup melted butter
  • 2 whole large eggs
  • 1 1/2 cups white chocolate chips, divided
  • 1 cup holiday M&Ms, divided
  • ½ cup sprinkles, divided

Instructions

  1. Preheat the oven to 350 degrees and line a 9x13” glass baking pan dish with parchment paper. 
  2. In a medium sized mixing bowl combine the cake mix, melted butter, and eggs together. 
  3. Stir in 3/4 cup of white chocolate chips, 3/4 cup M&Ms, 1/4 cup of sprinkles.
  4. Spoon the dough into the baking dish that has been lined with parchment paper and spread the dough evenly in the pan (the dough will be sticky). 
  5. Bake in the oven for 20 minutes.
  6. Remove from the oven and let cool in the baking dish for 15 minutes. After 15 minutes, remove the parchment paper from the baking dish and let the cookie bar cool on a cooling rack for 30 minutes. 
  7. Cut the cookie bar into 12 pieces.
  8. After the cookie bars are cooled, heat the remaining white chocolate in the microwave in 30 second increments until melted. 
  9. Separate the cookie bars a little and then drizzle the white chocolate over the cookie dough bars using a fork. Top with remaining M&Ms, white chocolate chips, and sprinkles. Let cool completely.

Notes

  • Cookie bars can be stored at room temperature in an airtight container for up to 1 week. 
  • Change up the color of M&Ms and sprinkles for any holiday. 
  • I used a pizza cutter to cut my cookie bars, but you can also use a knife.

Did you make this recipe?

Share it with me! I'd love to see your creation!

© Julie Smithson
Cuisine: Cookies / Category: Easy Christmas Recipes and Ideas

Colorful Christmas Cookie bars topped with red, green, and white M&M's, white drizzle, and holiday-themed sprinkles, arranged on a white wooden surface with festive decorations around.

Why are my Christmas Cookie Bars not done in the middle?

Cookie Bars have to bake longer than normal cookies. These M&M Christmas Cookie Bars bakes for 20 minutes, then cooling in the hot baking dish for another 15 minutes.

This ensures a fully cooked, but soft and chewy center!

A red plate holds Christmas Cookie bars topped with green and red candy-coated chocolates, colorful sprinkles, and drizzled white icing.

What to do with a cake mix?

Make this M&M Christmas Cookie Bars Recipe of course! Simple and easy and the PERFECT Holiday treat!

A stack of Christmas Cookie bars topped with white chocolate drizzle, colorful candies, and sprinkles, resembling a festive M&M Christmas Cookie Bars Recipe, with more decorated bars and festive decorations in the background.

Can you use regular M&M for baking?

Absolutely! Regular M&Ms (and even Mini M&Ms) are great for baked treats! They add a POP of color and an extra chocolate flavor!

I also love to use them in Easy No Bake Christmas Treats too!

Christmas-themed cookie bars with M&Ms and white drizzle, displayed on a red plate. Text reads: "Christmas Cookie Bars - easy recipe from a cake mix!.

Be sure to check out these Amazing Christmas Cookies Recipes and these Easy Christmas Dessert Recipes! Simple and easy Christmas Treats to add to your Holiday table this year!

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