Sugar cookie bars have all the delicious traits of classic vanilla cookies, but in a cookie bar! These easy frosted sugar cookie bars can be made for any occasion, and are finished with a simple buttercream frosting.

Hi hi! Just popping in to share the recipe for these super easy sugar cookie bars! These soft and chewy frosted sugar cookie bars are made a cookie bar version of my classic vanilla cookies.
These super simple sugar cookie bars are finished with an easy buttercream frosting and sprinkles, to make them perfect to suit any occasion. I love making them for a crowd as the recipe scales beautifully!


How to convert a cookie recipe into a bar recipe
This sugar cookie bar recipe is super simple - it is essentially a batch of classic vanilla cookie dough pressed into a pan and baked rather than being baked into individual drop cookies.
Baking a cookie bar into a pan not only saves you time but gives you a whole different textural experience - the middle pieces stay soft and chewy, while the outside edges get nice and crinkly, so you can choose what piece you get.
I often convert my homemade cookie recipes into cookie bar recipes - usually the only tweak I found I needed to make in the recipe testing process is reducing the leavening agent a little to stop them being as puffy, and deciding what pan to use. Here is how I typically decide pan size (for my recipes at least)
- If it is a larger cookie recipe such as my vanilla cookies, I will choose a 9x13" pan. I tried this sized batch in a 9" square pan and it did not go well.
- If it is a smaller batch recipe like my brown butter chocolate chip cookies or my M&M cookies, I will put it either into a 9" pan or an 8" pan (see my chocolate chip cookie bars and my M&M cookie bars). I tend to go for 8" for recipes like this as I like them slightly thicker, but if you want them thinner and a little crispier, go for a 9" pan.



The most satisfying part - frosting!
I finished the cooled cookie bars off with a super simple American buttercream frosting (butter, powdered sugar etc) - this is totally an optional step, but I will never turn down the opportunity to do some frosting swooping.
I tinted the buttercream with a little gel food coloring and finished the cookie bars off with sprinkles. You can really choose your own adventure here and do what you like. If you wanted a nostalgic chocolate frosting you could use my brownie frosting recipe (a double works well). You could also add on a cream cheese frosting if you wanted, or add some freeze dried raspberry powder like I did for this funfetti cake. You do you here.
If you don't want to frost the sugar cookie bars you can leave them plain and they are also delicious - just give the surface of the sugar cookie batter a generous sprinkle with granulated sugar before it goes into the oven. I like to do this regardless of if I am frosting them or not. You could also frost half of them and leave half of them plain, I cannot stress enough that this is a choose your own adventure situation.

How to get clean cuts on a cookie bar
I have a few tricks to doing this which I use for my brownie recipes especially. If you don't care about clean cuts on your baking then you do you here, but here is how I get nice clean cuts on my baked goods:
- Chill the cookie bars slightly. Yes, I also chill my cookie bars, just a little bit. This gives the frosting time to set and to also crust over, which gives a nice clean cut. You can also leave it at room temperature uncovered for a little to help it crust, but chilled will give you the cleanest cut here.
- Use a ruler. This is the only way I find to get nice even cuts - otherwise no matter how well I think I have done at eyeballing it, my cookie bars come out wonky.
- Use a sharp knife. I use a chef's knife that has a huge 12" blade on it which means I can do cuts all in one go. Having a super sharp knife helps a lot too though.
- Wipe the blade between cuts. This seems super annoying but I promise to get a nice clean cut on your sugar cookie bars, wiping the blade between each cut will help a lot here.


Shaping and decoration variations for sugar cookie bars
Christmas Trees: One thing I LOVE about this sugar cookie bar recipe is how easy it is to decorate in different ways. I used it to make little christmas trees for my holiday cookie box - to do this I trimmed the edges of the bar so it was nice and flat, then sliced in vertically into three strips, each about 6cm wide. Each strip I cut into triangles which were 5cm along the bottom - to do this, measure and mark increments on one side of the strip, then on the other side, offset by 2.5cm (or half the width of the triangle), and mark in 5cm increments again. Then you just line up your markings and you can cut your triangles!
I frosted them using one batch of the frosting as written, with a tiny bit more milk in there to help it pipe nice and easily. I had just enough for piping these, if you are worried or decorating with kids or using a few colours I would suggest maybe making 1.5 times the recipe. I used a wilton 32 tip and piped blobs of frosting on the cookies then finished with sprinkles and a gold ball for the 'star'. Super cute and so easy!

Chocolate and Peppermint Bars: These ones were super simple, I just frosted with a double batch of my brownie frosting (IYKYK - my husband is obsessed with it!), then finished with crushed candy canes and cut into bars. Super easy and so good with the candy cane topping. A top tip is to put the candy canes in a sieve so you shake the small bits over the frosting first then add the chunks for nice even distribution.
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Answers to your baking questions
Over the years, many of you have asked me questions about:
- baking in grams
- adjusting oven temperatures
- what kind of salt to use
- and many more!
I've curated and answered them all for your easy reference in this frequently asked questions post!
Soft Sugar Cookie Bars
- Prep Time: 30 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour 30 minutes
- Yield: 20 servings 1x
- Category: Cookies
- Method: Baking
- Cuisine: American
Description
Sugar cookie bars have all the delicious traits of classic vanilla cookies, but in a cookie bar! These easy frosted sugar cookie bars can be made for any occasion, and are finished with a simple buttercream frosting.
Ingredients
Sugar Cookie Bars
- 225g unsalted butter, at room temperature
- 300g granulated sugar
- 1 large egg (50g not including the shell), at room temperature
- 1 tsp vanilla bean paste or vanilla extract
- 320g all-purpose flour
- 1 tsp kosher salt
- ¼ tsp baking soda
- Granulated sugar for the top
American Buttercream Frosting
- 170g unsalted butter, at room temperature
- 380g powdered sugar, sifted
- 1 tsp vanilla bean paste or vanilla extract
- ½ tsp salt
- 2 tbsp cream or milk, plus more if needed
- Gel food coloring if desired
- Sprinkles for finishing
Instructions
SUGAR COOKIE BARS
- Preheat the oven to 350°f / 180°c. Grease and line a 9x13" (20x30cm) pan with parchment paper, leaving a little overhang or piece sticking out so that you can remove the cooled cookie bars once done.
- In the bowl of a stand mixer fitted with the paddle attachment or using a handheld electric mixer, cream the butter and sugar together on high speed until light and fluffy. Add the egg and vanilla and mix to combine. Sift together the flour, salt, and baking soda in a small bowl. Add to the mixer, and mix until just combined.
- Transfer the cookie dough to the prepared pan, and spread out into an even layer using an offset spatula.
- Sprinkle the top of the cookie bars with granulated sugar if desired.
- Bake the sugar cookie bars for 20 to 25 minutes, until they are lightly golden brown on the tops and the center looks set. They will crinkle a little around the edges of the pan and the cookie bars will deflate slightly when removed from the oven.
- Remove the cookie bars from the oven and place the pan on a wire rack to cool completely.
AMERICAN BUTTERCREAM FROSTING
- In the bowl of a stand mixer fitted with the paddle attachment, whip the butter, vanilla bean paste and salt until pale and creamy. Sift in the powdered sugar, and mix on medium speed until well combined.
- If needed, add cream a tablespoon at a time, until the frosting is light and fluffy, and a spreadable consistency. Add gel food colouring until the desired colour is reached.
- Run the mixer on low speed for 2-3 minutes to help remove any air bubbles from the frosting. You will need to use the frosting immediately or place a piece of plastic wrap directly against the surface to stop it from crusting.
- Remove the cooled cookie bars from the pan using the parchment paper and place onto a cutting board or serving platter.
- Transfer the frosting to the cookie bars and swoop it on using the back of a spoon or an offset spatula. Add sprinkles if you like.
- Chill the cookie bars just until the frosting is set to help cut them into clean pieces. Cut into pieces with a sharp knife, wiping the knife between cuts.
- Store cookie bars in an airtight container in the fridge or at room temperature for up to five days.
Notes
These sugar cookie bars are great because you can make them ahead of time and store in an airtight container either at room temperature or in the fridge, depending on how cool your kitchen is.
I haven't tried freezing the cookie bars themselves, but you could probably freeze the baked cookie bars before you frost them in an airtight container - I tend to not freeze frosting once it has been applied as it is better if you can re whip it before it goes onto the bars.
If you only have salted butter that is fine - I use unsalted butter in my recipes as I have a global audience and butter is salted differently worldwide. Just omit the salt in the recipe if you are using salted butter.
If you would like to add additional extracts to your cookie bars go ahead! I don't personally like almond extract but I know a lot of people do, so if that's your thing, then go for it. You could also rub some lemon zest into the sugar before starting to make the cookie bars, which would give them a lovely subtle lemon flavor.
You could also add sprinkles to the mix like I did with my funfetti cookies - now that I think about it i'm bummed I didn't do it earlier, and now need to try this asap.

Comments
April says
Absolutely fantastic recipe!! I made some for a family gathering and everyone raved about them - especially how perfect the ratio of cookie to icing was! Following you on instagram shows how much work you put into every recipe, and it shows whenever I bake something!!
Karly says
I love this recipe! I’ve made it 3-4 times now, sometimes plain sometimes with the frosting. Rave reviews from anyone who tries them! Thanks for sharing!