Why Are My Cookies Flat? Here’s How to Fix Them (2024)

Five fixes for flat cookie fails.

Published on November 03, 2023

In This Article

  • Incorrect Butter/Fat Temperature
  • Inadequate Chilling Time
  • Over-Mixing the Dough
  • Incorrect Baking Temperature
  • Expired Leavening Agents

Why Are My Cookies Flat? Here’s How to Fix Them (1)

Are your cookies turning out flat, and you don’t know why? You’re not alone. Flat cookies are a common kitchen mystery that can leave many home bakers scratching their heads. Keep reading to learn about five potential reasons for the flat cookie dilemma, along with ways to avoid the issue next time. With these five tips, you’ll be able to troubleshoot your cookie-baking process and ensure that your next batch is a triumph.

Incorrect Butter/Fat Temperature

Most cookie recipes call for room-temperature butter, and there’s a good reason for that! Unlike too-warm butter, room-temperature butter can be aerated easily in the creaming process, which helps the cookies turn out fluffy and light. Although it’s tempting to microwave butter when you want it to be at room temperature, resist the urge. The microwaved butter will be somewhere between melted and softened, and won’t be able to hold onto as much air. This, in turn, could be why your cookies are flatter than you might like.

Inadequate Chilling Time

Chilling cookie dough before baking it can prevent the fat from melting too quickly in the oven, which results in flat cookies. Be patient and let your dough rest in the refrigerator for the recommended time noted in the recipe before baking.

Over-Mixing the Dough

Over-mixing cookie dough creates extra gluten, yielding a tougher, flatter cookie. When you integrate the wet and dry ingredients, only mix until the ingredients are combined—no longer than necessary. Don’t worry if there are a few streaks of flour left!

Incorrect Baking Temperature

The baking temperature affects how quickly the cookies rise and spread, so it’s critical to let your oven heat up to the correct temperature before baking.

Expired Leavening Agents

Yes, baking powder and baking soda can expire! Once they’ve been opened, it’s best to use them within six months, so make sure to check expiration dates before you start baking. Expired leavening agents lose their effectiveness, leading to flat cookies.

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Why Are My Cookies Flat? Here’s How to Fix Them (2024)

FAQs

Why Are My Cookies Flat? Here’s How to Fix Them? ›

Inadequate Chilling Time

How to fix cookies that are too flat? ›

Adjust leavening agents: Baking powder and baking soda are responsible for the rise and structure of cookies. If your cookies are too flat, try slightly increasing these leavening agents. Conversely, if your cookies are overly puffy and then collapse into flatness, it could be due to using too much leavening agent.

Why are my cookies coming out flat? ›

If your cookies come out of the oven looking flat, you may not have adequately chilled the dough before baking. Chilling times may vary depending on the cookie you're making, but you should typically chill cookie dough in the refrigerator for at least two hours before you pop it in the oven.

How to make cookies thick and not flat? ›

Cover the baking tray with clingfilm and freeze the cookie dough balls for at least 90 minutes or up to 48 hours for best results. The longer you leave them, the thicker your cookies will be.

Why do my cookies not keep their shape? ›

If your butter is under mixed, it won't have the air pockets to hold it's shape. If it's over-mixed, the air pockets decrease in size and are unable to hold their shape in the oven—causing your cookies to spread. It's best to cream butter and sugar on medium speed for 2 to 3 minutes.

How to make your cookies rise more? ›

Baking Powder. The type of leavening you use in your cookies doesn't just help them rise while baking, it affects their texture and structure too. Baking soda in cookies yields a denser cookie with craggy tops, while baking powder causes cookies to rise higher during baking for a cakier texture.

Does baking soda make cookies flat? ›

Baking soda was old or expired

If you find your cookies are flat, the leavening agents may be the reason why. Baking powder and baking soda help give cookies their rise, but if they are not fresh they will not work properly. Additionally, while these two ingredients look similar, they are not interchangeable.

What is the secret ingredient to keep cookies soft? ›

Cornstarch Is The Secret To Soft And Chewy Cookies.

Should I use baking powder or baking soda for cookies? ›

Baking soda is typically used for chewy cookies, while baking powder is generally used for light and airy cookies. Since baking powder is comprised of a number of ingredients (baking soda, cream of tartar, cornstarch, etc.), using it instead of pure baking soda will affect the taste of your cookies.

How to make cookies keep their shape while baking? ›

Sandwich your dough between two sheets of parchment, roll, then freeze; it makes cut-out cookies a breeze! If you plan to store it for only a few hours or days, there's no need to overwrap the baking sheet; for longer storage, wrap the entire baking sheet tightly with plastic wrap before freezing.

How do you keep cookies fluffy? ›

Keep Them Sealed

The key to keeping cookies fresh and soft is to seal them in an airtight container, like a resealable freezer bag. And here's a nifty little trick: add a piece of bread to the bag.

What's the temperature to bake cookies? ›

Cookie temperatures fluctuate, with some recipes as low as 300 degrees Fahrenheit, and a few as high as 425 degrees Fahrenheit, but most recipes land on 375 or 350 to evenly bake the entirety of the cookie.

How to make cookies firmer? ›

If you want to make those cookies even harder next time, reduce the fat by 50 percent. These reductions should make your cookies sufficiently hard. If not, you can increase the baking time slightly, which will allow more time for moisture to evaporate as the cookie bakes and yield a firmer cookie.

How to stop cookies from flattening? ›

Chill the cookie dough.

Chilling cookie dough helps prevent spreading. The colder the dough, the less the cookies will over-spread into greasy puddles. You'll have thicker, sturdier, and more solid cookies. Whenever I make cookies, I plan ahead and chill the cookie dough overnight.

What causes cookies to be too flat? ›

Too much sugar and not enough flour could lead to flat cookies. If your cookie recipe calls for a high ratio of white sugar, it's likely that your cookies will turn out flat. A great way to prevent this is by using a mix of white and brown sugar instead.

What makes cookies fluffy and not flat? ›

Room temperature butter is just the right consistency to incorporate air when it's creamed with sugar. These trapped air pockets result in risen, fluffy cookies. If the butter is any warmer, it won't incorporate enough air and your cookies will have less rise.

How do you flatten cookies without sticking them? ›

Place your dough on the bottom sheet of parchment. For recipes that yield more than a dozen cookies, you'll likely have to work in batches of two or more. Cover the dough with the second sheet of parchment. Rock your rolling pin back and forth over the parchment to flatten the dough.

How do you keep cookies flat for decorating? ›

Leavener = rise, and you don't want a whole lot of rise out of your cookies. Do you have a tried and true sugar cookie recipe that you love, but the cookies come out a little too domed? Try reducing the leavener (such as baking powder) by a half to a quarter and see what happens. It should definitely help!

How to fix overmixed cookie dough? ›

If you overmix the dough, the cookies will be dry and crumbly. The best way to fix this is to add more liquid to the dough. This can be done by adding milk, water, or even melted butter. You may also need to add more flour to the dough if it is too wet.

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