Fixing Flat Cookies and Other Cookie Fails (2024)

Everyone has a different opinion about what makes a cookie "good." Some like flat, lacey cookies with a crispy finish, and others prefer puffy, cake-like cookies. No matter what your cookie preference might be, baking cookies from scratch can test the skills of any home cook. To help you achieve your desired cookie result, we're sharing some of the most common cookie issues and their solutions. Bake on!

Cookie Troubleshooting Guide

Q: Why are my cookies so thin and flat?

The butter or dough was too warm.

Butter should be at room temperature (unless otherwise noted). If the dough seems too soft, chill it for 10 to 15 minutes before baking.

Use shortening instead of butter or a combination of the two if you don't want to sacrifice that buttery flavor.

The dough was too wet.

Using the wrong size egg could also add extra liquid, resulting in too much spreading. Try decreasing the number of eggs in your recipe, or use egg yolks in place of whole eggs.

Too much sugar, not enough flour.

Using too little flour will prevent rising, and too much sugar will result in more spreading since sugar liquefies when heated.

The baking sheet was too warm or greasy.

Always use room temperature baking pans and cool your baking sheet between batches. Bring pans to room temperature quickly by carefully running the bottom of the pan under cool water.

Use parchment paper to prevent your cookie sheets from becoming greasy in between batches.

Using too much baking soda.

Try using baking powder instead of baking soda. Baking soda encourages spreading while baking powder puffs the cookies up. If your recipe calls for 1 teaspoon of baking soda, you would use 3 to 4 teaspoons of baking powder. Caution: This could result in an unwanted flavor shift.

Q: Why are my cookies so puffy and cakey?

Whipping too much air into the dough.

That fluffy texture you want in a cake results from beating a lot of air into the room temperature butter and sugar, and it does the same for cookies. So don't overdo it when you're creaming together the butter and sugar.

Adding too many eggs.

Play with the liquid ratio in your recipe. For added liquid without the leavening properties of eggs, try a tablespoon of water as a replacement for one egg.

Using the wrong type of flour (or just too much flour).

Using too much flour will make your cookies too cakey, so try reducing the flour amount by two tablespoons.

Avoid using cake flour instead; try a mix of all-purpose flour and bread flour for a more dense and chewy texture.

Using too much baking powder.


According to the science geeks at Serious Eats—we love you!—baking powder yields a cakier cookie than baking soda. If your recipe calls for 1 teaspoon baking powder, you would substitute 1/4 teaspoon baking soda. But if you use baking soda instead, your recipe needs acid (like in buttermilk or brown sugar) to activate it.

Q: Why are my cookies so tough and hard?

Using only white sugar.

Brown sugar—particularly dark brown sugar—makes a cookie chewy; white sugar makes it crispy. If your recipe calls for all white sugar and you want a fudgier result, try swapping out some of the white sugar for brown (go for half and half and adjust from there). You can also use honey or molasses for a chewier cookie.

Baking for too long.

Try taking your cookies out when they're browning at the edges but not in the center. Leave them on the sheet for about 5 minutes to set completely, then remove them to cool on a rack.

Not using enough fat in the dough.

A greater fat ratio (butter, margarine, shortening, etc.) to flour will result in a more tender cookie. Start by adding just a ¼ cup additional to your recipe. Melting the butter before adding it to the sugar will also up the chew factor.

Overmixing your dough.

Roll or mix your dough as little, and as gently, as you can.

Q: Why are my cookies not crisp enough?

They are underbaked.

Lower your oven temperature and bake longer but at a lower temperature.

Using too much flour or the wrong kind of flour.

Try using an all-purpose flour; its higher protein content results in a crispier cookie.

Too many eggs or other liquids in the dough.

Decrease the number of eggs in your recipe, or use egg yolks in place of whole eggs.

Too high a ratio of brown sugar to white sugar.

Increase the ratio of white sugar to brown sugar, or use all white sugar. Using corn syrup will also help crisp up a cookie when it bakes.

Related:

  • Ready to get baking? Here's how to bake perfect cookies from scratch.
  • Check out our most popular cookie recipes—from the best chocolate chip cookies to big soft ginger cookies to chewy coconut cookies.
  • Get tips for freezing cookies and cookie dough, a smart make-ahead solution for bulk baking.
Fixing Flat Cookies and Other Cookie Fails (2024)

FAQs

Fixing Flat Cookies and Other Cookie Fails? ›

Try decreasing the number of eggs in your recipe, or use egg yolks in place of whole eggs. Too much sugar, not enough flour. Using too little flour will prevent rising, and too much sugar will result in more spreading since sugar liquefies when heated. The baking sheet was too warm or greasy.

How do you fix cookies that are too flat? ›

Avoid packing the flour into the cup, as this can lead to using too much flour and result in dry, flat cookies. 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.

How do you fix failed cookie dough? ›

First, try adding more liquid to the dough. This can be milk, water, or even just a little bit of extra oil. If that doesn't work, you can try kneading the dough for a few minutes to help it come together. Lastly, if all else fails, you can always add in a few tablespoons of flour to help bind the dough together.

What if cookies are not baked enough? ›

They are likely not fully cooked if they feel excessively soft or doughy. Properly baked cookies should have a slightly firm texture on the outside. Spread: Raw or undercooked cookies may spread excessively during baking and have a flatter shape than desired.

What to do with cookies that came 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.

What makes cookies fluffy and not flat? ›

Flour adds fluff and texture to the cookies. Adding too little flour can cause cookies to be flat, greasy, and crispy. Most recipes assume you'll use all-purpose, but if you want a lighter, crumblier cookie texture, choose one with a lower protein content such as cake-and-pastry flour.

Why do my cookies keep failing? ›

If your cookies repeatedly turn out flat, no matter the recipe, chances are your oven is too hot. Here's what's happening. The butter melts super quickly in a too-hot oven before the other ingredients have firmed up into a cookie structure. Therefore, as the butter spreads so does the whole liquidy cookie.

Why are my cookies so flat and thin? ›

Ingredients weren't measured correctly

Incorrectly measured ingredients can be the reason your cookies come out too thin. Too much sugar can cause cookies to come out flat and crispy instead of soft and chewy. This goes for both white sugar and brown sugar. Not enough flour could also be the culprit.

Why did my cookie fail? ›

Using the wrong type of flour (or just too much flour).

Using too much flour will make your cookies too cakey, so try reducing the flour amount by two tablespoons. Avoid using cake flour instead; try a mix of all-purpose flour and bread flour for a more dense and chewy texture.

How to flatten cookies after baking? ›

Flatten your cookies with a spatula when they first come out of the oven for perfect cookies every time.

What if I put too much butter in my cookies? ›

Too much butter makes cookies turn out just as you'd expect: very buttery. This batch of cookies was cakey in the middle, but also airy throughout, with crispy edges. They were yellow and slightly puffy in the middle, and brown and super thin around the perimeter.

What happens if you overmix cookie dough? ›

If you overmix, you will end up aerating (adding air to) the dough, which causes the cookies to rise and then fall, leaving you with flat cookies.

How to fix flat cookies? ›

If your first batch of cookies bakes flat, try adding 1-2 tablespoons of flour to the remaining dough. Then bake a test cookie before baking the rest or adding a bit more flour.

Can underbaked cookies be rebaked? ›

In most cases, rebaking them typically takes no more than 15 minutes. On the other hand, using the same temperature you used initially to remedy your underdone cookies can sometimes be futile. Even if the temperature is not so high, it only encourages further baking of the dough until the well-done edges are overbaked.

What can I do if my no bake cookies won't set? ›

Why Didn't My No-Bake Cookies Set? Likely, you didn't boil the mixture long enough. You want the butter, milk, sugar, and cocoa mixture to boil for 2-3 full minutes and reach between 190°F-200°F. If you don't boil them for long enough, they will turn out gooey and will not set.

How to make cookies spread more? ›

Higher sugar content will lead to more spread, while lower sugar content will result in less spread. Experimenting with different sugar ratios can help you achieve the desired cookie spread. Flour type and amount: The type and amount of flour used in your cookie dough can also impact the spread.

How do you make cookies thicker and not flat? ›

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.

Does melted butter make cookies flat? ›

Cookies made with melted butter often deflate and become denser when they cool, resulting in a perfectly cooked fudgy center — a similar textural result to brownies that get rapped (aka banged against an oven rack mid-bake to deflate them) or Sarah Kieffer's iconic pan-banging cookies that turn out pleasantly compact.

Does baking soda make cookies rise? ›

When baking soda, also called sodium bicarbonate, is combined with an acid (like buttermilk or lemon juice) and a liquid, it produces the carbon dioxide that helps the dough or batter rise.

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