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    Brown Butter M&M Cookie Bars

    December 13, 2022 by Ania · This post may contain affiliate links · 1 Comment

    Jump to Recipe Print Recipe

    M&M cookie bars are chewy and soft cookie bars loaded with chocolate and M&Ms. The delicate, nutty flavour from the brown butter brings this recipe to a whole other level.

    With only 9 ingredients, these bars are so easy! It all gets mixed in one bowl, no electric mixer required.

    I made these bars last year on my blog as one of my first recipes here, so now they’re getting an upgrade! These M&M cookie bars are gooey, soft and loaded with M&M’s and chocolate chips. They are perfect for a cookie exchange or holiday party!

    For more cookie bars, try Chocolate Peanut Butter Stuffed Cookie Bars, Soft and Chewy Gingerbread Cookie Bars, and Cookie Butter Chocolate Chunk Bars.

    Jump to:
    • Why this recipe works
    • Ingredients Notes
    • Step by step instructions
    • Expert Baking Tips
    • FAQ
    • Storing
    • Check out these recipes
    • M&M Christmas Cookie Bars

    Why this recipe works

    Easy to make.- Only 8 ingredients that are probably already in your pantry!

    Festive – The holiday M&M’s add a great Christmas touch!

    Soft & chewy – These bars are super gooey and delicious!

    Brown butter – The brown butter adds a strong gourmet flavour!

    Ingredients Notes

    Full recipe and ingredients are in the recipe card below. Feel free to scroll through this section to view certain key ingredients we’re using!

    Butter – Unsalted. This will be melted and browned.

    Brown sugar – I used dark brown sugar but light brown sugar works as well!

    M&M’s – I used holiday M&M’s for this recipe. Feel free to use any seasonal or regular ones!

    Chocolate chips – Mini chocolate chips are my favourite to use as they create tiny perfect pockets of chocolate. You can use dark or semi-sweet as well, but not milk.

    Step by step instructions

    Here is how to make and bake these M&M Christmas bars. You will need an 8×8 pan, a bowl, a spatula, and a whisk.

    Step 1: Prep the pan. Preheat the oven to 350°F/180°C. Line a square 8×8 baking pan with parchment paper and set it aside.

    Step 2: Brown the butter. Check out the recipe card for browning butter details. Once browned and slightly cooled, whisk with brown sugar and white sugar. Then whisk in eggs and vanilla.

    Step 3: Add in dry ingredients. Toss in flour and baking soda and fold with a spatula until just combined.

    Step 4: Mix in add-ins. Add in chocolate chips and M&Ms.

    Step 5: Transfer and bake. Spread evenly into the prepared pan and then bake. The bars will look golden brown on the edge but slightly puffy in the middle. Let the bars cool completely on a wire cooling rack before cutting and enjoy!

    Expert Baking Tips

    Here are a few expert baking tips from my kitchen to yours

    • Use a gram scale for the most accurate measurements.
    • Substitute the M&M’s for any occasion, holiday-related or not.
    • Extra M&M’s on top. Add a few M&M’s on top of the dough right before baking them. You may also press a few M&M’s on top immediately after the bars come out of the oven.

    FAQ

    Can I double the recipe?

    Yes! Use a 9×13 pan and keep an eye on the time.

    Do I have to brown the butter?

    No! Although if you’re already melting it you may as well brown it. The nutty aroma and flavour it gives is a game changer for this recipe.

    How do I know it’s ready?

    The edges will be slightly golden brown, but the middle will still be light in colour and slightly puffy. It will continue to bake in the pan as it sets.

    Storing

    Room temperature: Once baked and cooled down to room temperature, store the cookie bars in an airtight container at room temperature for up to 4 days.

    Freezer: Store them in an airtight container or freezer bag for up to 1 month.

    Check out these recipes

    • Carrot Cake Cheesecake Bars
    • Easter Chocolate Chip Cookies
    • Mini Egg No Bake Chocolate Oatmeal Bars
    • Valentine’s Day Kitchen Sink Cookies

    PS : Make sure to leave a STAR REVIEW if you enjoyed this recipe! Let’s stay connected on Instagram @sweettreatsyt. To get more recipes follow me on TikTok @sweettreatsyt!

    M&M Christmas Cookie Bars

    Ania
    M&M cookie bars are chewy and soft cookie bars loaded with chocolate and M&Ms. The delicate, nutty flavour from the brown butter brings this recipe to a whole other level.
    5 from 4 votes
    Print Recipe Pin Recipe
    Prep Time 15 mins
    Cook Time 18 mins
    Course Dessert
    Cuisine American
    Servings 9 bars
    Calories 153 kcal

    Ingredients
      

    • 1/2 cup butter melted and browned
    • 1/4 cup white sugar
    • 1/4 cup brown sugar
    • 1 tbsp vanilla
    • 1 egg room temperature
    • 1/2 tsp baking soda
    • 1 cup all-purpose flour
    • 1/2 tsp salt
    • 1/3 cup mini chocolate chips
    • 1/3 cup Christmas M&M's

    Instructions
     

    • Preheat the oven to 350°F/180°C. Line a square 8×8 baking pan with parchment paper and set it aside.
    • Brown the butter: Melt the butter in a medium sized pan over medium heat. Once it melts, it will crackle, then become foamy – continue mixing the butter while this happens to prevent burning. The butter will go from melted to golden brown quickly, and you'll know it's almost done when the aroma of browned butter arrives. The whole process should take about 5 minutes! Once golden, remove from heat and transfer to a glass bowl. Let the butter cool for 30 minutes while you prep on the rest of the recipe.
    • Whisk together the slightly cooled browned butter and both sugars. Add in egg and vanilla and continue whisking.
      1/2 cup butter, 1/4 cup white sugar, 1/4 cup brown sugar, 1 tbsp vanilla, 1 egg
    • Using a spatula, fold in the flour and baking soda. The dough will be soft, don't over-mix!
      1/2 tsp baking soda, 1 cup all-purpose flour
    • Toss in the chocolate chips and M&M's and mix.
      1/3 cup mini chocolate chips, 1/3 cup Christmas M&M's
    • Press into prepared pan. Bake for 18-20 minutes until the edges are golden brown. The middle will look slightly puffy. Allow to cool in pan, slice, and enjoy!

    Nutrition

    Serving: 1barCalories: 153kcalCarbohydrates: 26gProtein: 3gFat: 4gSaturated Fat: 2gPolyunsaturated Fat: 0.3gMonounsaturated Fat: 1gTrans Fat: 0.01gCholesterol: 20mgSodium: 85mgPotassium: 88mgFiber: 1gSugar: 15gVitamin A: 52IUCalcium: 30mgIron: 1mg
    Keyword christmas baking, easy m&m bars, holiday baking, m&m cookie bars, simple cookie bars
    Tried this recipe?Let us know how it was!

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    Hi, I’m Ania!

    Welcome to Taffey Bakery. Here I share a wide variety of desserts you can create with simple, everyday ingredients. Let’s get to baking!

     

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