Classic Plain Oatmeal Cookies Recipe | CDKitchen.com (2025)

FAQs

Why are my homemade oatmeal cookies hard? ›

Not Enough Moisture: Ensure you're using the right amount of butter in your recipe and that it's at the correct temperature (softened not melted) when you start. Oatmeal cookies require more moisture to stay soft. Consider adding an extra egg yolk or a touch of milk to your dough to enhance moisture content.

There are several reasons why the cookies may have become dry and crumbly but the two most likely are that either the cookies were baked for too long or too much flour was added to the dough. The cookie should be baked only until the edges are slightly golden and the top looks a little wrinkled.

BAKING SODA: When baking soda is combined with an acid, like the cocoa powder, baking powder, and brown sugar in this recipe, it produces carbon dioxide, which helps the cookie dough rise and eventually spread. It also helps the cookies caramelize, raising the pH level in the dough for peak browning.

The bread/apple trick

Here's a baker's trick you'll find in our new Monster Cookies recipe: Adding a piece of fresh white bread to the storage container will keep cookies from becoming hard or stale.

Baking cookies quickly in a hot oven – at 375 degrees F as opposed to a lower temperature – will make for soft results. They'll bake fast instead of sitting and drying out in the oven's hot air. Ever so slightly underbaking your cookies will give you softer results than cooking them the full amount the recipe says.

Baking powder

Baking powder contains sodium bicarbonate and acidic salts. The reaction of these two ingredients results in a cookie that is soft and thick, but slightly harder.

Since most cookies are made with softened butter, which is then creamed with the sugar to act as the foundation, it's best to chill the dough after mixing to allow that butter to cool off. “Cookies made from chilled dough expand more slowly as they bake,” Hill says.

Add Molasses or Honey Another way to add more moisture to your cookies is incorporate a tablespoon of molasses into a standard-sized cookie recipe. Don't use any more than a tablespoon, because it will make your cookies very sweet and runny. One tablespoon is just enough.

In addition to be heated for a warm breakfast bowl, rolled oats are commonly used in granola bars, cookies, muffins, and other baked goods. Instant oats can be used in place of rolled oats, although the cook time will be much less, and the final dish will not have as much texture.

Baking soda is generally about three times stronger than baking powder, so adjust your recipe accordingly. Baking soda and baking powder can produce cookies with different textures. Baking soda is typically used for chewy cookies, while baking powder is generally used for light and airy cookies.

What happens if I forget the baking soda in my oatmeal cookies? ›

If you don't have baking soda, you can use baking powder, at three times what the recipe calls for. So if a recipe calls for one teaspoon of baking soda, you can use three teaspoons of baking powder. Baking powder also contains a little bit of salt, so it's also a good idea to halve the salt the recipe calls for.

Bakery or homemade cookies can be stored at room temperature two to three weeks or two months in the refrigerator. Cookies retain their quality when stored in the freezer for eight to 12 months.

Cookies become hard when the moisture in them evaporates. This can be caused by leaving them out in the air for too long, baking them for too long, or storing them improperly. The lack of moisture makes the cookies hard and dry, which makes them difficult to enjoy.

Also, underbaking them by a minute or 2 will help them retain a dense, chewy bite, explains Jenny McCoy, pastry baking arts chef-instructor at the Institute for Culinary Education in New York. Adding more moisture to your dough in the form of extra butter, egg yolks, or brown sugar will make your cookies even softer.

According to The Kitchn, this occurs when you over-mix the dough. Mixing the dough naturally causes gluten to develop in the flour, and while you do need a good amount of gluten to give your cookies structure, too much of it will result in hard cookies.

Over-baking is perhaps the most obvious - too long in the oven and your cookies will dry out, so make sure you time it right. Overworking your dough is another common problem, causing excess gluten strands to form, and making your cookie hard and tough. Fat content can be a cause.

Oven temperatures are a crucial factor in baking. If your cookies consistently come out flat, you may have selected the wrong baking temperature. If you bake cookies using too much heat, the fats in the dough begin to melt before the other ingredients can cook together and form your cookie's rise.

Sugar dissolved in baking forms a syrup as the dough heats up. Different types of sugars affect the texture because they absorb different amounts of water. Remember moisture is the key! White sugar creates crispier cookies and brown sugar creates chewier cookies.