Best Frosted Sugar Cookie Bars (Easy & Chewy Recipe)

Frosted with a light and fluffy sweet buttercream frosting, these Frosted Sugar Cookie Bars are your favorite cookie in bar form. Easy, beautiful, and absolutely irresistible.

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Classic sugar cookies in a handheld bar? Sign me up, please! So much easier than making cookie after cookie, these Frosted Sugar Cookie Bars will be your new favorite treat.

Don’t get me wrong, I love me some regular sugar cookies, but there is something so satisfying when I bite into a thick and chewy cookie bar that you just can’t get from traditional sugar cookies.

Bars in any shape or form are the perfect vehicle for frosting, so any chance I get to indulge in a frosted cookie bar, I’m all for it.

Plus, can we mention the elephant in the room here…. have you ever seen a more gorgeous cookie bar?!

I might be a little biased, but I think this treat would stand out on any dessert spread.

I’ve brought these to multiple bake sales and family get-togethers, and they are always one of the first desserts to disappear.

So, if you are looking for a new recipe to switch up your cookie routine, I highly suggest trying these Frosted Sugar Cookie Bars.

Some of our other favorite cookie bars on our site include: Banana Blondies with Cream Cheese Frosting, Oatmeal Chocolate Chip Cookie Bars Recipe, and Peanut Butter Chocolate Chip Cookie Bars.

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1. It makes a lot to feed a crowd, but you can also halve the recipe if needed.
2. Great for a make-ahead dessert option since it can sit at room temperature for a few days.
3. Simple pantry ingredients mean you probably have everything on hand already to make this perfect dessert.

• All-purpose flour
• Baking powder
• Pinch of salt
• Unsalted butter
• Granulated sugar
• Large eggs
• Vanilla extract
• Powdered sugar
• Milk
• Food coloring of your choice, optional
• Sprinkles, optional

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1. Preheat the oven to 375°F. Line a 9×13 baking pan with parchment paper or foil and spray with baking spray, set aside.
2. Add the flour, baking powder, and salt to a large bowl and whisk until combined, set aside.
3. In the bowl of a stand mixer with the paddle attachment or with an electric mixer and a large bowl, cream the room temperature butter and sugar on medium speed until light and fluffy. It ends up being a pale yellow color, about 3 minutes.
4. Add the eggs in one at a time until incorporated. Add in the vanilla and mix until combined.
5. Add the dry ingredients to the wet ingredients and mix in until just combined, with no dry patches, but do not overmix.
6. Press the sugar cookie dough into the bottom of the baking dish, I like to use my hands for this.
7. Bake for 20-25 minutes until lightly golden brown along the edges and a toothpick inserted into the center comes out clean. Let cool completely on a wire rack.

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8. While the cookie cools, make the frosting recipe by placing the butter in the body of a stand mixer with the paddle attachment or in a large bowl with a hand mixer and whip the butter until smooth.
9. Add the powdered sugar and mix until combined.
10. Add in the salt, vanilla, and milk, stir in until combined. Scrape the sides as needed.
11. Whip on medium-high speed for 3 minutes until fluffy; add in food coloring if using and fully mix it in until you reach your desired frosting color, use a spatula to do one last stir in to make sure there are no streaks of white left. 
12. Once the cookie is completely cooled, frost it and add sprinkles if using. Cut into 15 bars and serve.

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DO I HAVE TO USE FOOD COLORING?

You most definitely do not need to use food coloring. The frosting itself will be a white color, which is still pleasing to the eye.

I like to add food coloring for a fun pop of color, and it’s the perfect way to dress up the easy sugar cookie bars for specific themes, holidays, or events.

If you do want to use food coloring, I suggest using gel-based food coloring. It is very vibrant, and a very small amount goes a long way.

This is my favorite kind: