There’s something comforting about chewy oatmeal chocolate chip cookies. These cookies have crisp edges, soft centers, and stay tender and chewy for days. A hint of cinnamon adds a warm note that brings everything together.

What ingredients make these cookies so good:
- Old fashioned oats. These give the cookies structure and that classic oat texture. They hold up during baking and yield the best chew.
- Brown sugar. A generous amount of brown sugar adds depth and molasses flavor while helping keep the cookies soft and chewy.
- Cinnamon. Just 1/4 teaspoon adds gentle warmth and complements the oats and chocolate.
- Cornstarch. A small amount of cornstarch helps the cookies stay tender and chewy for days.
Old Fashioned Oats vs. Quick Oats

Quick Oats
Quick oats (instant oats) are more processed: pre-cooked, dried, and rolled very thin. They break down more during mixing and baking, producing a mushier texture. For these cookies they make the texture and moisture balance off, so avoid them.
Old Fashioned Oats
Old fashioned (rolled) oats are thicker and hold their shape better. They absorb more moisture than quick oats and deliver the desirable oat-y texture in cookies, granola bars, and muffins. Use old fashioned oats for best results.
Watch the video to see how these cookies are made
Cooking temperature and time
I recommend scooping 1/4-cup dough balls and baking at 425°F for 6–8 minutes. This high temperature yields crisp edges and a soft interior; once cooled, the cookies develop a great chewy texture. Watch closely—at 425°F they can go from golden to overdone quickly.
Ideal cookie size and making them smaller
The 1/4-cup size is tested to produce the right spread and texture at the recommended temperature and bake time. To make smaller cookies, lower the oven to 375°F and check them after 5 minutes; smaller cookies bake faster, so monitor closely.
Measure your flour
Measure flour accurately to avoid dry, crumbly cookies. Weighing flour is the most precise method—130 g per cup is a good guideline. Proper measurement ensures consistent texture.
Freeze your cookie dough

Freezing pre-scooped dough makes baking a batch quick and convenient. Scoop dough into 1/4-cup balls, place them on a pan, and freeze for about an hour so they keep their shape. Then transfer frozen balls to a container with layers separated by parchment or wax paper to prevent sticking.
How to bake cookie dough from frozen
Let frozen dough balls sit at room temperature for about 15 minutes while the oven preheats, then bake as usual. You may need to add 1–2 minutes to the bake time—use visual cues and judgment to determine doneness.
Try these other cookie recipes
-
Coconut Pecan Cookies
-
Brown Butter Pecan Cookies
-
Chocolate Chip Marshmallow Cookies
-
Blueberry Coconut Pecan Cookies
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Chewy Oatmeal Chocolate Chip Cookies
Ingredients
- 1 cup butter room temperature
- ½ cup granulated sugar
- 1 ½ cups brown sugar
- 2 eggs
- 2 teaspoons vanilla
- ¼ teaspoon cinnamon
- 1 teaspoon salt
- 1 teaspoon baking soda
- 3 tablespoons cornstarch
- 2 cups flour measured correctly
- 2 cups old fashioned oats
- 2 cups semi-sweet chocolate chips
Instructions
- Preheat oven to 425°F. Grease baking sheets or line them. Cream together butter, granulated sugar, and brown sugar with the eggs and vanilla for about 2 minutes, until pale and fluffy.
- Mix in baking soda, salt, cornstarch, and cinnamon. Stir in flour until just combined—overmixing will make cookies tough.
- Fold in oats and chocolate chips. Scoop 1/4-cup portions and shape into rounds. Bake until tops and edges are golden, 6–8 minutes. Watch closely at 425°F to avoid burning.
- Cool cookies on the baking sheet for 10 minutes before transferring to a rack. If making smaller cookies, reduce the oven to 375°F and monitor them closely.
Video
Nutrition
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Carbohydrates: 38g
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Protein: 3g
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Fat: 13g
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Originally published August 26, 2018

