Christmas Cookie Bars

Christmas cookie bars are chewy and delicious. The M&Ms add a festive pop, making them perfect for any party!

This Christmas bar recipe is tasty, festive and just right for the holidays. For more yummy treats try Frosted Holiday Mint M&M Cookies, Easy Brownie Christmas Trees, or Christmas Chocolate Chip Cookies.

Christmas cookie bars stacked on a white plate

Very Merry Cookie Bars

These cookies bars are ooey and chewy goodness. The best part is they are super easy to make and do not require much prep time at all. They make a tasty and quick treat to whip together for a last minute holiday party or for surprise visitors!

I love that you can make these super festive by changing up the M&Ms, that’s also a great way to boost the flavor profile! I love to try mint M&Ms for a little bit of extra yum.

My girls like to whip these up themselves because the are seriously so easy! Then we get the vanilla ice cream out and eat a big scoop with these warm and merry cookie bars.

Cookie bar dough in a metal baking pan

Making Christmas Cookie Bars

PREP. Preheat the oven to 350°F and grease a 9×9 baking pan.

DOUGH. In a microwave safe bowl melt the butter. In a mixing bowl add the melted butter, brown sugar, egg, and vanilla. Mix well. Add the flour, baking soda, baking powder and salt. Mix well and pour into the 9×9 pan.

SPRINKLE & BAKE. Evenly sprinkle the M&Ms and chocolate chips over the top. Bake for 20-25 minutes.

Variations: From doubling the recipe to what you put on top, this recipe is easy to adjust to whatever you desire:

  • Doubling: Simply double the ingredients and bake the bars in a larger pan. For thicker bars use a 9×13 pan. For thinner bars use an 11×16 pan. Bake at 350°F for a few extra minutes than stated in the recipe. 
  • Toppings: Using red, white and green M&Ms was an easy way to turn these cookies into a festive treat. Some other festive toppings include christmas sprinkles and christmas colored frosting. You don’t have to stick to Christmas colors you can also use toppings like white chocolate chips, chopped toffee bits, butterscotch chips. Be creative!

So many great ways to change these up!

Christmas M&M's and chocolate chips sprinkled on cookie bar dough

Serving and Storing

These cookie bars would be a delicious treat SERVED with warm cocoa or cider. Here are some of our favorite recipes:

Much like traditional chocolate chip cookies, these cookie bars STORE really well. You can keep them on the counter or put them in the freezer to save for later.

  • Room temp: Cover the pan with plastic wrap and then store the bars on the counter for up to 3 days.
  • Freezer: Use plastic wrap to wrap the entire block with plastic wrap or you can wrap each bar individually. Wrap again with foil or place in a freezer Ziploc. 
  • Reheat: simply heat the bars up in the microwave for a few seconds.

M&M Christmas cookie bars stacked on a white plate

For more Dessert Bars, try:

For more Christmas Treats, check out:

Christmas Cookie Bar Recipe

5 from 11 votes
Christmas cookie bars are chewy and delicious. The M&Ms add a festive pop, making them perfect for any party!
Course Dessert
Cuisine American
Prep Time 8 minutes
Cook Time 20 minutes
Total Time 28 minutes
Servings 12
Calories 307 kcal
Author Lil' Luna

Ingredients

Instructions
 

  • Preheat the oven to 350°F and grease a 9x9 baking pan.
  • In a microwave safe bowl melt the butter.
  • In a mixing bowl add the melted butter, brown sugar, egg, and vanilla. Mix well.
  • Add the flour, baking soda, baking powder and salt. Mix well and pour into the 9x9 pan.
  • Evenly sprinkle the M&Ms and chocolate chips over the top. Bake for 20-25 minutes.

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About Kristyn

My name is Kristyn and I’m the mom of SIX stinkin’ cute kids and the wife to my smokin’ hot hubby, Lo. My mom’s maiden name is Luna, and I’m one of the many crafty “Lil’ Lunas” in the fam. On this site I like to share all things creative - from recipes to home decor to gifts and home decor ideas. Welcome!

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Comments:

  1. 5 stars
    Cookie bars are awesome when I don’t want to bake the different batches of normal drop cookies. I love the festive Christmas m&m’s on these bars.

  2. 5 stars
    I love any chewy type dessert and this did NOT disappoint!! So so yummy and perfect for all the holiday celebrations this month!