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Peppermint White Chocolate Bars

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A holiday classic, this peppermint white chocolate bar recipe is a must-try. Your whole family will love the chewy dessert bar and fluffy peppermint frosting! 

Peppermint White Chocolate Bars, sliced and surrounded by peppermint candies

The combination of chocolate and peppermint is everywhere during the holiday season and I am not complaining one bit! I love these bars because they call for both white chocolate and milk chocolate chips. The combo isn’t overly sweet, which makes for a great bite alongside each bite of peppermint frosting. 

Three peppermint white chocolate bars on a white plate

What is a Peppermint White Chocolate Bar? //

Dessert bars are neither a brownie nor a cookie – but they are all delicious! I love a bar, and I have plenty of favorites here (check the end of this post for a few I want to share). These are found all over the world, with thousands of variations, but the idea is thought to have come out of the U.S. and gained popularity through Betty Crocker’s dessert bar mixes. 

I always prefer home made and this peppermint white chocolate bar is great for everything from holiday parties to on-the-go snacking since they are hand-held and won’t fall apart! This version is great for gifting and can be stored in the freezer for many months. 

What Makes This Peppermint White Chocolate Bar So Good? // 

I love these because of their flavor combo, and the incredible smell they make in the oven – but also: 

  • These freeze really well, making them great to make ahead 
  • The peppermint flavor can be toned down easily to adjust for taste buds
  • You don’t have to choose between a cookie or a brownie! With this bar, you can have both

Ingredients //

We have ingredients for both the bar and the frosting, and I have separated them that way 

This is two photos showing the ingredients for the cookie bar on the left, and the peppermint frosting on the right.

For the bar (photo on the left) you will need:

  • eggs
  • flour
  • butter
  • sugar
  • chopped white chocolate
  • mini chocolate chips
  • vanilla and peppermint extract

For the chopped white chocolate; I recommend finding a brand that does not use palm oil, as it can create a greasy texture. Finally, mini chocolate chips and round out this portion. 

The peppermint frosting (photo on the right), you will need:

  • more white chocolate
  • vanilla and peppermint extract
  • butter
  • powdered sugar
  • sour cream
  • salt
  • crushed peppermint candies

How To // The Steps 

  • Begin by melting the white chocolate and butter over a double boiler.
  • Once melted, take off the heat and whisk in sugar, eggs, vanilla, and peppermint extract until smooth.
  • Add the flour and mix completely.
This is a collage of the initial steps of this recipe, ending with a prepared batter.

  • Prep a 9×13 inch pan with non-stick spray or butter. 
  • Pour batter into your pan and bake for 28 to 30 minutes.
  • Once they’re out of the oven, sprinkle on chocolate chips and let them cool. 
This is a process shot of the bars before baking, after baking, and after the addition of chocolate chips.
  • While those cool, melt the next portion of white chocolate for your frosting. Set it aside. 
  • Next, cream together butter powdered sugar. 
  • Beat in sour cream, vanilla, peppermint extract and salt on low until combined. After that, pour in the white chocolate and beat until smooth. 
  • Then, add the remaining powdered sugar and mix until combined.
A bowl of fluffy peppermint frosting
  • Spread the white chocolate peppermint frosting over the bars, and sprinkle on your crushed peppermints. 
This image shows the final process of the recipe, as you frost the bars with the fluffy peppermint frosting

Serving Suggestions // 

I like to slice these small to start, since they are so rich! Of course, a glass of milk or a cup of coffee goes really well with these. 

Storing and Gifting Your Peppermint White Chocolate Bars // 

The peppermint flavor is usually associated with the holidays, but these are great year-round and they’re easy to pull from the fridge when you get a hankering in March! 

To eat within the week: Cut the pan into squares. Line the base of an air-tight container with parchment paper and start adding the bars. You will want to keep parchment between each layer; they will hold up in the fridge for about five days before starting to dry. 

To enjoy these later, start out by putting the sliced peppermint white chocolate bars on a cookie sheet. Line them with 1-2 inches between each piece and freeze for an hour. After that, line an air-tight container with parchment paper and stack the bars with more parchment between each. 

If gifting these, it’s important to note that the frosting is best when it has been chilled. Wrapping them in parchment paper and then plastic wrap, will keep them cooler and fresher for longer! Throw a little bow on, and these are a hit! 

More Dessert Bar Recipes //

Originally published in November 2012, updated December 2020 with updated images and updated recipe card.

If you make this recipe, I’d love to know how it goes! Be sure to follow me on Facebook, Instagram and Pinterest, too!

Peppermint White Chocolate Bars, sliced and surrounded by peppermint candies

Peppermint White Chocolate Bars

Yield: makes 18
Prep Time: 20 minutes
Cook Time: 28 minutes
Total Time: 48 minutes

Peppermint White Chocolate Bars - A white chocolate peppermint blondie, chocolate chips, and a thick layer or white chocolate peppermint frosting.


  • 12 ounces white chocolate, chopped
  • 1/2 cup butter
  • 1/2 cup sugar
  • 3 eggs
  • 2 teaspoons vanilla
  • 1 teaspoon peppermint extract
  • 1 1/2 cups flour
  • 1 cup mini chocolate chips

White Chocolate Peppermint Frosting:

  • 6 ounces white chocolate, chopped
  • 1/2 cup butter, room temperature
  • 3 1/2 cups powdered sugar
  • 1/3 cup sour cream
  • 1/2 teaspoon vanilla
  • 1/2 teaspoon peppermint extract
  • 1/4 teaspoon salt
  • crushed peppermint candies


  1. Melt the white chocolate and butter over a double boiler over simmering water. Take off of the heat and whisk in sugar, eggs, vanilla, and peppermint extract. Whisk until smooth. Add flour and stir until combined.
  2. Pour batter into a greased 9×13 pan that has been coated with cooking spray. Cook in a preheated 350 degree oven for 28 to 30 minutes.
  3. As soon as you take the bars out of the oven, sprinkle with chocolate chips. Cool completely.
  4. Start on the frosting. Melt the white chocolate and set aside to cool. Meanwhile, cream together butter and 1 3/4 cups powdered sugar. Beat in sour cream, vanilla, peppermint extract and salt. Beat on low until combined. Add the white chocolate and beat until smooth. Add the remaining powdered sugar and beat until light and fluffy.
  5. Spread white chocolate frosting over cooled bars. Sprinkle with crushed peppermints.
Nutrition Information:
Yield: 18 Serving Size: 1
Amount Per Serving: Calories: 457Total Fat: 24gSaturated Fat: 14gTrans Fat: 0gUnsaturated Fat: 8gCholesterol: 67mgSodium: 151mgCarbohydrates: 59gFiber: 1gSugar: 49gProtein: 4g

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Did you make this recipe?

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Sallie Zimmerman

Wednesday 13th of December 2017

Can you freeze these bars?


Wednesday 13th of December 2017

Yes you can.


Thursday 1st of December 2016

I want to try these for sure! Question though, with the sour cream in the frosting, is it safe to leave out?


Monday 5th of December 2016

I don't ever really leave anything out. I'd keep them in the fridge.


Monday 17th of December 2012

These look amazing!


Saturday 15th of December 2012

I just made these and they are cooling but smell absolutely delicious! The print of recipe doesn't say to add the rest of the powdered sugar though, just a heads up(: I can't wait to try them!(:


Sunday 16th of December 2012

thanks Lizzy! I'll fix it.


Wednesday 12th of December 2012

Thank you for the lovely recipe! I made these for an office holiday potluck today and they were a hit! Many colleagues telling each other, "You've got to try one of those!"


Sunday 16th of December 2012

Just what I like to hear!

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