How to Bake THICK Cookies - Handle the Heat
Filed Under: Baking Science | Cookies

How to Bake THICK Cookies

August 15th, 2019

Learn the secrets for How to Bake THICK Cookies that don’t spread into sad flat puddles while baking or deflate after cooling. Plus how to fix flat cookies even after baking! Download my FREE Cookie Customization Guide here.

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What makes cookies thick, fat, fluffy, and delicious? And why do some cookies come out flat, thin, and sad? Especially if you followed the recipe ‘to a T’ or if you’ve made them before with no problems!

Well if you’ve followed me for a while then you know I like to dive into the science of baking in a fun and visual way.

It’s absolutely shocking how such simple variances in the baking process can result in such massive differences in the final product. Today I want to dive into how to bake THICK cookies that stay nice and fat, even after cooling.

Read through this whole article to get a sense of why your cookies come out unintentionally flat. I hope you find these tips helpful!

Thick vs thin chocolate chip cookies on cooling rack

The Key to THICK Cookies: Keep Cool!

Generally speaking, the warmer the dough is when it enters the oven, the flatter the cookies will bake. So, for thick cookies:

Use Butter at a COOL Room Temperature for THICK Cookies!

A common misconception is that your butter should be completely at room temperature when making cookies. Perfect room-temperature butter for cookie baking should:

  • Give slightly when pressed with your finger, but still hold its shape
  • Be flexible without breaking or cracking
  • Is at a cool room temperature of about 67°F (or even a couple degrees colder is fine, especially if it’s hot in your kitchen)

Be careful if microwaving butter to bring it to room temperature. Use 50% power to ensure you don’t overheat it. If you do, return it to the fridge until it’s perfect.

Check out this picture below, where we baked the exact same cookie recipe, using the exact same ingredients, baking time, and temperature – the only difference was the temperature of the butter at the time of creaming. The cookie on the left used butter that was completely at room temperature, and the cookie on the right used cool room temp butter at 67°F.

Flat cookie made with warm butter vs. thicker cookie made with cool butter

Chill Your Cookie Dough

Chilling your cookie dough for at least 24 hours or up to 72 hours does magical things to your cookies. Think of this like a “marinating” period. Not only will the flavors intensify, but the texture will also improve, so your cookies will bake up nice and thick and chewy. This is due in part to the fact that the flour will have a longer period to absorb moisture within the dough. Give it a try!

@MeganBush9 on Instagram had flat puddle cookies that were fixed simply by chilling the dough for 2 hours. Look at the results:

User submitted photo of flat cookies vs thick cookies due to chilling cookie dough

LEARN MORE about chilling aka ‘marinating’ your cookie dough here!

Briefly Freeze Your Cookie Dough Balls

Take your sheet of cookie dough balls and pop it in the freezer while your oven preheats, for about 20 minutes. This will help prevent excess cookie spreading, so you get nice fat thick cookies. I’d especially recommend this if it’s a hot day, or if you’re baking multiple trays of cookies one at a time. As the first batch bakes, the remaining dough sitting on the counter will continue to get warmer and warmer, resulting in thinner cookies. You can even pop your bowl of dough in the fridge in between batches to prevent it from getting too warm.

Scoop Tall Mounds of Cookie Dough

Cookie dough shaped into tall mounds instead of round disks
Similarly to the tip above, shaping tall mounds of dough instead of balls or discs before baking can prevent too much spreading and result in thicker cookies.

Decrease Moisture

If you live in a humid environment, you may have problems with cookies spreading and flattening too much – especially in the summer months. Even if it’s not a particularly humid day when you go to make cookies, the moisture can actually seep into ingredients like flour and remain there for a while.

Flat cookies can also happen at high altitude.

I live in Phoenix, which is a very dry climate at sea level. A cookie dough recipe that turns out perfectly for me here may end up a little too “moist” and flat for those of you in humidity or altitude.

Here’s what to do:

Add More Flour

Thin cookie with less flour vs thick cookie with more flour
Start with 2 tablespoons extra flour and go from there. When I’m unsure about how a tweak will affect my cookies, I’ll just bake off a few cookies to start out with. Let them cool then see what if the dough might need even more flour. Play around until you get it right! Then you’ll have an idea of what works in your kitchen specifically.

King Arthur Flour has a great guide on high-altitude baking as well.

Use Bleached Flour (Instead of Unbleached)

Bleached vs. unbleached cookie comparison

Bleached flour absorbs more moisture than unbleached flour, making for THICK Cookies. If you struggle with your cookies spreading out more than you want, try using bleached flour.

Use Shortening

Thinner cookie made with butter vs. thicker cookie made with shortening
This is not my favorite ingredient. However, where butter contains about 15 to 20 percent water, shortening is pure fat. This will reduce spread. If you’d like to get the best of both worlds, the delicious taste of butter and the texture of shortening, then use half and half in a recipe.

Don’t Over-Beat the Butter and Sugar!

This can incorporate too much air into the dough. So much that the dough can’t hold onto all that air, the structure will weaken, and the cookies will collapse as they bake or cool. Overbeating can also warm up the butter, which further increases spread.

So if you’ve ever had cookies bake up perfectly in the oven, then deflate as they cool, try beating your butter and sugar for only 2 minutes. Cookies don’t need as much creaming time as cake. Learn more about creaming butter and sugar here!

Use Less Granulated Sugar and More Brown Sugar

This might seem contrary to the above section since brown sugar has more moisture than granulated sugar, but cookies made with all granulated sugar will actually spread out more than cookies made with all brown sugar. So, feel free to tweak the ratio of brown to white sugar in the recipe you’re using to help reduce spread and increase thickness.

Pay Attention to Your Baking Pans!

Take a look at the picture below. Each cookie came from the same exact batch of dough, baked for the same amount of time, at the same temperature. The only difference was the baking sheet each cookie was baked on. Crazy right?!

Six cookies baked on different baking sheets

If you want to check out my full Best Baking Pans article (and see the bottoms of these cookies, which are all SO different!), click here. But when it comes to baking thick cookies, here are my baking pan tips:

Use Quality Baking Pans

Thin, flimsy, or cheap baking pans won’t conduct heat efficiently. This can negatively impact the texture of your cookies. These are my favorite half-sheet pans to bake with. If you’re still having issues with uneven cookie baking, try baking just one pan at a time on the center rack of the oven.

Allow Your Pans to Cool Completely

Never place cookie dough on a pan that’s still hot from the oven. This will cause the butter to start melting before it has even hit the oven! Always allow your baking sheets to cool completely between batches. You can speed this up by running your pan under cool water (wearing oven mitts!). Or, just invest in multiple high-quality baking pans so you can whip up batches quickly.

Never Grease Your Baking Pan

I always use parchment paper to bake cookies. I personally prefer it over silicone baking mats, but either will do. Just never use nonstick spray when baking cookies. And if you’re making multiple batches on the same pan, clean off any grease from the previous batch that might remain on the pan. Excess grease will result in excess spreading.

Check Your Leaveners

Did you add too much, or use expired baking powder and/or baking soda? Too much chemical leavener can cause the cookies to deflate, and expired leavener won’t work at all to raise the cookies. Also, baking soda specifically aids in spreading and browning. Learn more about the differences between baking soda and baking powder, and how to test for freshness, here.

Check Your Oven

Did you know that most ovens are lying to you about the temperature they’re actually at?! Many home ovens are off by 15 degrees or more. This might not seem like a big difference, but it has a huge impact on your baking. Here’s why oven temp matters so much:

  • If your oven is running too cool: Your cookies are baking at a lower temperature than they should be, causing the butter to melt too slowly and potentially over-spread your cookies. It can also mean your cookies stay pale and don’t achieve any crispness around the edges.
  • If your oven is running too hot: Your cookies are baking at a higher temperature than they should be, which can cause the cookies to dry out, over-brown, over-crisp, or even burn on the bottom.
  • An oven thermometer can be your best friend in the kitchen, to make sure your oven is heating correctly.
  • Learn more of my oven tips in my Oven 101 article here.

Bonus Tip!

Make sure all of your butter is incorporated and there are no pockets hidden at the base of your mixing bowl! If I’m not careful about scraping down the sides and bottom of my mixing bowl, even if I’m using one of those paddle attachments that scrapes as it goes, I usually end up with a few cookies from the bottom of the bowl that look like they exploded out one side in the oven. This is due to pockets of unincorporated butter!

How to Rescue Flat Cookies

If your cookies turned into absolutely flat puddles of nothing while baking, try chopping them up and mixing them into ice cream.

If your cookies turned out just a little flatter than you’d like, simply grab a spatula or a spoon and press the edges into the center to thicken. Better yet, use a round cookie or biscuit cutter that’s just slightly bigger than the cookie’s diameter. Run the cutter around the cookie to re-shape into a perfect thicker circle. Do this as soon as they come out of the oven while they’re still hot and moldable. You can also do this for any misshapen cookies to make them perfectly round. Watch this trick in action over on my Instagram page here!

My Favorite Thick Cookie Recipes

More Cookie Science Articles

More Cookie Customization Tips

Check out my free guide to learn more about how to customize your cookies to make them thicker, chewier, cakier, or whatever your heart desires!

Tessa Arias
Author: Tessa Arias

I share trusted baking recipes your friends will LOVE alongside insights into the science of sweets. I'm a professionally trained chef, cookbook author, and cookie queen. I love to write about all things sweet, carb-y, and homemade. I live in Phoenix, Arizona (hence the blog name!)

Tessa Arias

About Tessa...

I share trusted baking recipes your friends will LOVE alongside insights into the science of sweets. I'm a professionally trained chef, cookbook author, and cookie queen. I love to write about all things sweet, carb-y, and homemade. I live in Phoenix, Arizona (hence the blog name!)

Find Tessa on  

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  1. #
    CBrown — October 9, 2022 at 6:37 am

    What if one has reduced the fat content, for example, replacing some of the butter with applesauce or, in my particular case, mashed banana? I had put them in the fridge overnight – and it too them forever to bake – and they basically maintained the same shape I put them on the pan in (a rounded ball). I would imagine this would mean flattening them out before they bake and/or allowing them to come to room temperature prior to putting them in the oven. Advice is greatly appreciated!

    • #
      Kiersten @ Handle the Heat — October 10, 2022 at 9:08 am

      Hi there! Unfortunately, substituting such ingredients is something we do not recommend. Baking is a science, and baked goods need to maintain certain ratios of fat, sugar, gluten etc to be successful. Altering these ratios too drastically will result in big repercussions, and it won’t always work out. If you wish to experiment, we always suggest baking the recipe as-written first, so you have something to compare to, and then slowly make your changes each batch thereafter, one small change at a time, until you’re pleased with the result. For now, it sounds like your cookies are struggling to spread because there isn’t enough fat, so flattening them will help them bake through faster- but it’s hard to say if they’ll bake super well! Best of luck and happy baking!

  2. #
    Hayley — July 31, 2022 at 9:11 am

    My go to recipe is your Bakery Style Chocolate Chip Cookies. The last several times I have made them they look and feel pretty greasy/oily. I’m assuming something I’m doing wrong with the butter?

    • #
      Kiersten @ Handle the Heat — August 1, 2022 at 1:20 pm

      Hi Hayley! Hmm, that doesn’t sound right! It could be your butter temperature – it might be getting too warm in this summer heat! We recommend a cool 67°F for best results. It also could be the type of butter you are using. Are you using an American-style butter, or perhaps a European-style butter? The difference between the two is butterfat content, and the slightly higher fat content of European-style butter could be enough to make the cookies seem greasier.

      Feel free to respond with any further information, so we can help troubleshoot! 🙂

  3. #
    Marsha Frank, Olympia WA — May 13, 2022 at 11:11 am

    I have been baking for many years and this has been a very helpful article. I can’t wait to make those cherry white chocolate chip cookies I made that turned out so flat you could see through using your tips. Love this blog.

    • #
      Kiersten @ Handle the Heat — May 17, 2022 at 7:29 am

      Hi Marsha! Thank you so much for the feedback – I’m so happy you found Tessa’s tips so helpful! Happy baking 🙂

  4. #
    Ana — January 1, 2022 at 5:20 pm

    I wonder about filled in cookies, I’ve seen them in bakeries here in Barcelona and online but never found a recipe to try and make them

    Like this shop that is about to open…

    Thanks in advance

    • #
      Emily — January 3, 2022 at 10:40 am

      Hi Ana! That link doesn’t take me anywhere, do you mean how to bake cookies with a filling inside, like our Fudge Filled Cookies?

      • #
        Ana — January 3, 2022 at 3:21 pm

        Similar but their are sooo big, that one of the things that comes to my mind when I see this kind of cookie is that it has to be undone in the core of it. I’m curious because only tried once as it is still difficult to find many bakeries of this kind in Barcelona and more in those turbulent times.
        Anyway I’ll keep digging and investigating while enjoying your blog and recipes ☺️❤️

        • #
          Emily — January 3, 2022 at 4:05 pm

          Gotcha! You might be interested in checking out Cupcake Jemma on YouTube. She’s one of my absolute favorites and actually has a few videos regarding some amazing stuffed cookies. I think it’s just what you’re looking for. Here’s a link!

      • #
        Ana — January 3, 2022 at 11:14 pm

        I can’t see here your last answer bit I did on my email, thanks for the reply and… Yes!! Cupcake Jemma and NY style cookies are the perfect answer.

  5. #
    Michelle D — August 21, 2021 at 10:21 am

    Love these tips ! Especially to refrigerate the dough at least 2-24 hours or add more flour and brown sugar versus granulated
    Can’t wait to
    Try on my molasses cookies

  6. #
    Gayle Joyce — January 19, 2021 at 7:45 am

    Can I use shortening instead of butter?

  7. #
    Jessica — June 11, 2020 at 11:51 am

    What if you don’t have room in your freezer to put in a sheet? I don’t even have room for a half-sheet. I scoop balls first because I have such a difficult time getting the dough to room temperature enough to scoop it, chill them in the ‘fridge for about 24 hours, and leave them in the fridge between batches. I know you recommend chilling the dough for at least 24 hours before scooping it and putting it into balls, but this works best for me.

  8. #
    Ellen — December 2, 2019 at 1:36 pm

    Have you experimented with oat flour in addition to or instead of wheat flour in a chocolate chip cookie? I was wondering if this would make a chewier and thicker cookie. Also the oat flavor might be nice.

  9. #
    Marie Rehg — November 23, 2019 at 10:38 pm

    Love your advice. I, too, prefer parchment. I crinkle (or wrinkle)it to make it lay flat. M R

  10. #
    Dora — November 20, 2019 at 7:17 pm

    i have singed up for several of guides etc… EX: Download my FREE Cookie Customization Guide here. I have NEVER gotten any of them sent to me.

  11. #
    Natalie — September 10, 2019 at 2:36 pm

    Great article! I know some info but not all. Very helpful 🙂

  12. #
    Arzoo Chaudhary — September 6, 2019 at 12:43 am

    Thanks for sharing this recipe as I badly wanted this one. As the weekend is near will ask my mother to try it at home.

  13. #
    Viana @ — August 23, 2019 at 1:37 pm

    Wow, I’m making so many mistakes…not cooling the batter, using warm butter, putting the dough on warm cookie sheets. Thanks for the tips, I’ll definitely try these come winter cookie season!

  14. #
    Ela — August 15, 2019 at 7:07 pm

    What brand of parchment paper do you use? Some parchment paper tends to be too oily after baking.

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