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Chocolate Marshmallow Peppermint Bars

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Sharing these gorgeous Chocolate Marshmallow Peppermint Bars, perfect for your Holiday baking!

Chocolate Marshmallow Peppermint Bars

These bars are a chocolate lovers dream!  Chewy cookie bars with the perfect crunch from candy canes and marshmallow bits.  Your guests are going to go crazy for these.  They make festive gifts for your family and friends too.

Chocolate Marshmallow Peppermint Bars

It’s always a pleasure partnering with Karo® Syrup to bring you a festive treat that is sure to be the star of the dessert table!  I was inspired by Karo’s Chocolate Peanut Butter Bites recipe, and added my own touch to it!

The texture Karo® Syrup brings to your baking is like no other. It’s always stocked in my pantry for all of my Holiday baking and I think you’ll find it’s a key ingredient to have around whenever you’re baking. The Holidays are THEE perfect time to show friends and family how much you care, so make sure to bake a little extra so everyone can enjoy these yummy treats!

Chocolate Marshmallow Peppermint Bars

Start by adding your softened butter and brown sugar to a large mixing bowl.

Chocolate Marshmallow Peppermint Bars

Add your Karo® Dark Corn Syrup.

Chocolate Marshmallow Peppermint Bars

Add 2 eggs, vanilla, and stir until well combined.

Chocolate Marshmallow Peppermint Bars

Add your dry ingredients and give a good stir until dough forms.

Chocolate Marshmallow Peppermint Bars
Transfer dough to parchment lined baking dish and bake for 25 minutes, or until baked through. Remove and let cool.

Chocolate Marshmallow Peppermint Bars

Once your bars are cool, frost with a thin layer of chocolate frosting and top with crushed candy cane pieces and marshmallow bits.

Chocolate Marshmallow Peppermint Bars

Wait until you sink your teeth into these chewy chocolate cookie bars.  Perfection!

Chocolate Marshmallow Peppermint Bars



Chocolate Marshmallow Peppermint Bars

Chocolate Marshmallow Peppermint BarsPrep time: 20 min | Cook time: 25 min | Total time: 2 hours, including cooling time


  • 1/2 cup softened butter
  • 1 1/4 cups light brown sugar, packed
  • 1/3 cup Karo® Dark Corn Syrup
  • 2 large eggs
  • 1 teaspoon pure vanilla extract
  • 1 3/4 cups all-purpose flour
  • 2/3 cup cocoa powder
  • 1/2 teaspoon kosher salt
  • 1 teaspoon baking powder
  • 1 1/2 cups prepared chocolate frosting
  • 1/2 cup marshmallow bits or mini marshmallows
  • 1/2 cup crushed candy cane pieces


  1. Preheat oven to 350 degrees F. and line 7×11 inch baking dish with parchment paper.
  2. In a large bowl mix butter, brown sugar, corn syrup, eggs and vanilla until well combined. Slowly stir in flour, cocoa powder, salt and baking powder until dough forms. Transfer to baking dish, spread evenly and bake for 25 minutes or until baked through. Remove and let cool completely.
  3. When bars are cooled, spread with frosting and top evenly with marshmallow bits and crushed candy cane pieces. Cut into squares and serve room temperature.

Makes 12 Servings

Adapted from recipe by Karo® Syrup

Disclaimer: This post is in partnership with Karo® Syrup. All thoughts and opinions are 100% my own. Thank you for supporting the brands that make Picky Palate possible.

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Chocolate Marshmallow Peppermint Bars

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17 Responses | Comments RSS

  1. 1
    Ayana Golden says:

    Well this still work with light corn syrup

  2. 2

    So pretty and festive!

  3. 3

    What festive bars for the holidays!

  4. 4
    Naomi says:

    These look so lush and fantastic!

  5. 5

    So festive! These are sure to be a hit this holiday season!

  6. 6

    All of my favorite things, who could turn these down!!!

  7. 7

    The marshmallows make the bar!

  8. 8

    These are so fudgy and festive! Love!

  9. 9

    All of my favorite holiday sweets in one recipe? I cannot turn this down.

  10. 10
    Dorothy says:

    They look like a combination brownie and fudge. I’m in love!

  11. 11

    You had me at marshmallow peppermint!!!

  12. 12

    Pinning so I can make these with my boys over winter break!!

  13. 13

    These would be stunning on a cookie platter! All my favorites in one place!

  14. 14
    TidyMom says:

    All of my favorites in one spectacular treat!!

  15. 15

    I love everything about these!

  16. 16
    Africa says:

    Chocolate Chip Cookies baking then Peanut Butter Marshmallow Then NAP time hahaha Gotta get ready for graveyard shift

  17. 17

    These look amazing! Easy to make and most importantly scrumptious!!!

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Jenny Flake

Welcome to Picky Palate, my online kitchen! You'll usually find me with a cookie in one hand and a salad in the other. It's all about the balance :) The recipes you'll see are my creations. The Picky Palate Cookbook is now available. Enjoy!