Are you looking for an easy holiday dessert that feels festive, buttery, and bakery-worthy without rolling out a single cookie? Christmas Sugar Cookie Bars bring all the soft vanilla flavor of classic sugar cookies into a simple pan bake that is easy to frost, slice, and share.

These bars are thick, tender, and topped with a creamy layer of frosting plus cheerful red, green, and white sprinkles. They are perfect for cookie trays, classroom parties, family gatherings, and Christmas dessert tables when you want something homemade that still feels low stress.

Preparation Phase & Tools to Use

Before you begin, take a few minutes to set out your ingredients and equipment. This helps the dough mix evenly, keeps the texture soft, and makes the whole process smoother from start to finish.

A 9×13-inch baking pan is the most important tool because it gives the bars their signature thickness and helps them bake evenly. Parchment paper is useful for easy lifting and cleaner slicing once the bars have cooled. A large mixing bowl gives you room to cream the butter and sugar properly, while a hand mixer or stand mixer helps build a light, fluffy base that keeps the bars soft instead of dense.

Measuring cups and spoons matter more than people think in a sugar-cookie-style bake because the right flour ratio keeps the bars tender. A rubber spatula helps you scrape the bowl fully so nothing is wasted, and an offset spatula or butter knife makes spreading the frosting much easier. Finally, a cooling rack is helpful because fully cooled bars hold the frosting better and slice into neater squares.

These ingredients come together to create soft, buttery bars with a sweet frosting and the classic holiday look everyone loves.

Unsalted butter gives the bars their rich flavor and soft crumb while also forming the base of the frosting.

Granulated sugar adds sweetness and helps create that classic sugar cookie taste.

Eggs bring structure and moisture so the bars bake up tender instead of dry.

Vanilla extract gives the dough and frosting a warm bakery-style flavor that makes the whole pan smell like Christmas.

All-purpose flour provides the body of the bars and keeps them sturdy enough for frosting and slicing.

Baking powder helps the bars rise gently so they stay soft and light.

Salt balances the sweetness and keeps the vanilla flavor from tasting flat.

Powdered sugar is essential for a smooth, fluffy frosting that spreads beautifully over the cooled bars.

Milk or heavy cream loosens the frosting just enough to make it silky and easy to spread.

Holiday sprinkles add crunch, color, and that instantly festive Christmas finish.

This method keeps things simple and reliable, making it a great holiday bake whether you are preparing dessert for a party or just filling the kitchen with something cheerful.

Step 1: Prep the Pan and Oven

Preheat your oven to 350°F. Grease a 9×13-inch baking pan or line it with parchment paper so the bars lift out easily after cooling.

Step 2: Cream the Butter and Sugar

In a large mixing bowl, beat the softened butter and granulated sugar until the mixture looks pale and fluffy. This step helps create a lighter texture and gives the bars their soft bite.

Step 3: Add the Eggs and Vanilla

Mix in the eggs one at a time, then add the vanilla extract. Scrape down the sides of the bowl so everything blends evenly.

Step 4: Combine the Dry Ingredients

In a separate bowl, whisk together the flour, baking powder, and salt. Add the dry mixture to the wet ingredients gradually, mixing just until a soft dough forms. Do not overmix or the bars can turn firm.

Step 5: Spread and Bake

Press or spread the dough evenly into the prepared pan. Bake for 18 to 24 minutes, or until the edges are lightly golden and the center is set. The top should look soft rather than deeply browned.

Step 6: Cool Completely

Let the bars cool fully in the pan before frosting. This is important because warm bars will melt the frosting and make the top messy.

Step 7: Make the Frosting

Beat softened butter with powdered sugar, vanilla, and a little milk or cream until smooth and fluffy. Add more milk only as needed to reach a spreadable consistency.

Step 8: Frost and Decorate

Spread the frosting over the cooled bars in an even layer. Finish with red, green, and white sprinkles for a cheerful Christmas look.

Step 9: Slice and Serve

Cut into squares or rectangles, depending on how you want to serve them. Smaller pieces work well for cookie platters, while larger bars feel more like a full dessert.

Christmas Sugar Cookie Bars are best served at room temperature, when the frosting is soft and the bars are at their most tender. They look especially pretty arranged on a holiday tray with other Christmas sweets, and they are easy to cut into smaller portions for parties, gift boxes, or dessert buffets.

To store them, keep the bars in an airtight container at room temperature for up to 3 days if your kitchen is cool. For longer storage, refrigerate them for up to 1 week. Place parchment between layers so the frosting stays neat. You can also freeze unfrosted or frosted bars for up to 2 months. Thaw them in the refrigerator, then bring them to room temperature before serving for the best texture.

Frequently Asked Questions

Yes. You can bake the bars a day or two in advance, then frost and decorate them before serving. This makes them especially helpful during busy holiday weeks.

Dry bars usually come from too much flour or overbaking. Measure the flour carefully and pull the pan from the oven when the center is just set.

Can I use store-bought frosting?

You can, especially if you need a shortcut. Homemade frosting gives a fresher buttery flavor, but store-bought frosting still works for a quick holiday dessert.

Do I need to chill the dough first?

No. One of the best things about Christmas Sugar Cookie Bars is that the dough goes straight into the pan, so there is no rolling, cutting, or chilling required.

Can I change the sprinkle colors?

Absolutely. You can use any color mix for different holidays, birthdays, baby showers, or seasonal dessert trays.

Yes. Wrap them well and freeze for up to 2 months. For the prettiest results, freeze the bars in a single layer first, then stack them with parchment between pieces.

Want More Christmas Dessert Ideas?

If you love easy holiday sweets, you might also enjoy these festive bakes from LadyPlate. For a colorful, airy treat, try the Easy Jello Meringue Cookies. If you want something cozy and bakery-style for winter mornings, the Cinnamon Donut Bread is a great choice.

For richer dessert bar inspiration, take a look at the Chocolate Peanut Butter Dream Bars or the bright and creamy Lemon Marbled Cheesecake Bars. And if you want another classic cookie option for the holiday table, the Thick and Chewy Peanut Butter Cookies are always a crowd-pleaser.

Pin and Tell Me How Yours Turned Out

Save this Christmas Sugar Cookie Bars idea to your holiday dessert boards so it is easy to find when baking season gets busy. You can also browse more sweet inspiration on my LadyPlate Pinterest recipe collection.

If you make these bars, I would love to hear how they turned out. Did you keep them classic with vanilla frosting, or add a little almond extract for a bakery twist? Leave a comment and share how you decorated yours.