Sharing these gorgeous Chocolate Marshmallow Peppermint Bars, the BEST brownie recipe for your guests! Perfect for your Holiday baking.

The best brownie recipe is making its’ way to your kitchen this Holiday season! These bars are a chocolate lovers dream! Chewy 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. For more Christmas recipes see HERE.

Be sure to follow Picky Palate on Instagram for sneak peeks on what’s coming next to the blog!

How To Make The Best Brownie Recipe

You’ll need a few easy to find ingredients that you are likely to already have in your pantry and refrigerator. 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!

Start by adding your softened butter and brown sugar to a large mixing bowl. Add your Karo® Dark Corn Syrup. Mix well then add 2 eggs, vanilla, and stir until well combined.


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

Transfer batter to a parchment lined baking dish and bake for 25 minutes, or until baked through. Remove and let cool.

Once your bars are cool, frost with a thin layer of chocolate frosting and top with crushed candy cane pieces and marshmallow bits. Wait until you sink your teeth into these chewy chocolate brownies.


Tips For Making These Bars

Make sure you use parchment paper to line your baking dish. Makes it much easier to pull out bars to cut into squares.

Use a plastic knife to cut your brownies into squares. No sticking, no mess!

Store any leftover brownies in an airtight container for 3 days on counter or 5 days in refrigerator.

These make great neighbor gifts too!

Chocolate Marshmallow Peppermint Bars
Prep Time
20 mins
Cook Time
25 mins
Total Time
45 mins
Course: Dessert
Cuisine: American
Keyword: best brownie recipe, brownie, brownie recipe, brownies, chocolate, holiday, holiday baking, holiday entertaining, how to make homemade brownies
Servings: 12
Calories: 426 kcal
Author: Jenny
  • 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 7x11 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.
Recipe Notes

Recipe inspired by THIS from Karo Website.

Nutrition Facts
Chocolate Marshmallow Peppermint Bars
Amount Per Serving
Calories 426 Calories from Fat 126
% Daily Value*
Fat 14g22%
Saturated Fat 7g44%
Cholesterol 47mg16%
Sodium 251mg11%
Potassium 226mg6%
Carbohydrates 75g25%
Fiber 2g8%
Sugar 54g60%
Protein 4g8%
Vitamin A 275IU6%
Calcium 53mg5%
Iron 2.3mg13%
* Percent Daily Values are based on a 2000 calorie diet.

Disclaimer: This post was in partnership with Karo® Syrup in 2016. All thoughts and opinions are 100% my own. Thank you for supporting the brands that make Picky Palate possible.

Pin Chocolate Marshmallow Peppermint Bars