Peppermint sugar cookie bars are the ultimate festive treat, combining a dense, melt-in-your-mouth blondie base with a cloud-like swirl of peppermint-infused frosting. If you follow alicecooks_official on Pinterest, you know we are obsessed with textures that pop, and these bars deliver exactly that. The soft-baked base provides a sturdy yet tender foundation for the thick, pale pink peppermint buttercream that sits beautifully on top, finished with the satisfying crunch of crushed candy canes.

Why You Will Obsess Over These Holiday Cookie Bars
- The Ultra-Soft Texture: Unlike thin cookies, these peppermint sugar cookie bars have a thick, dense, blondie-style crumb that stays soft for days.
- Visual Perfection: The contrast between the pale pink buttercream frosting and the bright red and white crushed candy canes makes these a viral-ready centerpiece.
- Double Peppermint Punch: We use peppermint extract in both the cookie base and the frosting, layered with white sparkling sugar crystals for a winter-wonderland finish.
- Batch-Friendly Baking: These are much faster than rolling individual cookies, making them the perfect companion to our best chocolate chip cookies recipe.
Essential Components for the Ultimate Peppermint Bar
To achieve that forensic visual accuracy seen in our photos, each ingredient serves a specific culinary purpose. We aren’t just making a cookie; we are building layers of flavor and texture.
The Soft-Baked Sugar Cookie Base
- Unsalted Butter (1 cup / 227g): Softened to room temperature to ensure a perfect creamed emulsion with the sugar.
- Granulated Sugar (1.5 cups / 300g): Provides sweetness and helps create those slightly crisp, golden edges.
- Large Eggs (2): Act as the binder, giving the peppermint sugar cookie bars their rich, dense structure.
- Peppermint Extract (1 tsp / 5ml): The soul of the dish, providing that cooling, festive aroma.
- All-Purpose Flour (3 cups / 375g): The structural framework; measure carefully to avoid a dry bar.
- Baking Powder (1 tsp / 5g): Just enough lift to keep them soft without turning them into cake.
The Pale Pink Peppermint Buttercream & Garnish
- Powdered Sugar (4 cups / 500g): Sifted to ensure the frosting is smooth enough for professional swirls.
- Heavy Cream (3-4 tbsp / 45-60ml): Creates that “handheld smartphone photo” aesthetic by making the frosting fluffy and pipeable.
- Pink Food Coloring: Just a drop to achieve that specific pale pink peppermint buttercream hue.
- Crushed Candy Canes (1/2 cup / 60g): Provides the essential red and white visual pop and a sharp minty crunch.
- White Sparkling Sugar: Adds a crystalline glimmer that catches the light in every shot.

How to Make Peppermint Sugar Cookie Bars Step-by-Step
1. Preparing the Blondie-Style Base
Preheat your oven to 350°F (175°C) and line a 9×13 inch pan with parchment paper. Leaving a slight overhang will allow you to lift the bars out easily for those perfect square cuts.
In a large bowl, cream together the softened butter and granulated sugar for at least 3 minutes. You are looking for a pale, fluffy texture. Add the eggs one at a time, followed by the peppermint and vanilla extracts. Visual Cue: The mixture should look like a thick, glossy pale yellow ribbon.
2. Mixing and Baking for Density
Whisk your dry ingredients—flour, baking powder, and salt—in a separate bowl. Gradually add them to the wet ingredients, mixing until just combined. Overmixing will lead to a tough cookie, and we want these to be ultra-soft.
Press the dough evenly into your prepared pan. Bake for 20-25 minutes. Crucial Timing: Remove them when the edges are just barely golden, but the center still looks slightly underbaked. They will firm up as they cool, resulting in that dense, fudge-like sugar cookie texture.
3. Whipping the Pale Pink Buttercream
While the base cools completely (this is vital—frosting a warm bar results in a melted mess!), whip your butter until smooth. Add the powdered sugar, peppermint extract, and a tiny drop of pink coloring. Beat on high until the frosting is voluminous and holds a peak. If you love this texture, you’ll also enjoy our cookie dough brownies.
4. The Finishing Flourish
Spread the pale pink peppermint buttercream frosting in thick, textured swirls across the cooled base. Immediately garnish with the plentifully crushed red-and-white peppermint candy canes and a generous dusting of sparkling white sugar crystals. The crystals should catch the morning side-light, making the bars look like they are covered in fresh frost.
Expert Tips for Success
- Room Temperature Ingredients: Ensure your butter and eggs are at room temperature to prevent the batter from curdling.
- The “Clean Cut” Secret: For those sharp, professional edges, chill the frosted bars in the fridge for 30 minutes before slicing with a hot, dry knife.
- Candy Cane Timing: Only add the crushed candy canes right before serving if you live in a humid environment, as they can eventually start to “weep” or melt into the frosting.
- Variations: If you prefer a darker chocolate profile, try topping these with the frosting from our mint chocolate cupcakes.
Storage, Reheating & Freezing
These peppermint sugar cookie bars stay fresh in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to 7 days. If you prefer them “warm-from-the-oven” soft, a quick 10-second zap in the microwave will soften the base perfectly.
Freezing Instructions: You can freeze the un-frosted cookie base for up to 3 months. Wrap tightly in plastic wrap and foil. Thaw at room temperature before adding the fresh buttercream and candy cane garnish.
What to Serve With This Holiday Dessert
These bars are rich and sweet, making them the perfect partner for a bitter espresso or a cold glass of milk. If you are hosting a holiday party, they look stunning on a dessert board next to strawberry shortcake truffles or a selection of mini cheesecakes.
Frequently Asked Questions
Yes! You can bake the base up to two days in advance. Store it at room temperature and add the fresh frosting and candy canes just before serving to ensure the garnish stays crunchy.
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Peppermint oil is much more concentrated than extract. If substituting, use only 1/4 teaspoon of oil for every 1 teaspoon of extract requested in the recipe to avoid an overwhelming flavor.
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Use a tiny amount of gel food coloring rather than liquid. Dip a toothpick into the gel and swirl it into the buttercream; a little goes a long way to achieve that soft, pale pink hue.
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Candy canes are made of sugar, which attracts moisture. In humid environments, they can start to ‘weep.’ For best results, sprinkle the crushed candy canes on the peppermint sugar cookie bars immediately before serving.
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The Ultimate Peppermint Sugar Cookie Bar Recipe


Peppermint Sugar Cookie Bars with Pink Peppermint Buttercream
Ingredients
Equipment
Method
- Cream softened butter and granulated sugar until light and fluffy, about 3 minutes.
- Beat in eggs one at a time, then stir in peppermint extract.
- Slowly mix in flour and baking powder until just combined; do not overmix.
- Press into a lined 9x13 pan and bake at 350°F (175°C) for 20-25 minutes until edges are barely golden.
- Whip butter, powdered sugar, cream, peppermint, and pink coloring until fluffy peaks form.
- Spread thick swirls of frosting over the cooled base. Top with crushed candy canes and sparkling sugar.
Notes
Use high-quality peppermint extract for the best festive flavor.
Save, Share, and Rate!
Did these peppermint sugar cookie bars bring the holiday magic to your kitchen? We want to see your results! Save this recipe to your Christmas Baking or Dessert Recipes board on Pinterest so you never lose it. Follow alicecooks_official for more high-end holiday treats. If you made these, please leave a 5-star rating below and upload a photo of your beautiful pink swirls in the comments!