These oatmeal cookies are rich, flavorful, and easy to customize. With one simple recipe, you can make soft and chewy oatmeal cookies or bake them a little longer for crisp, golden cookies with a caramelized snap.
This oatmeal cookies recipe is one of the best ways to make classic homemade cookies with a tender center, buttery edges, and plenty of oat texture. The key ingredient that makes these cookies stand out is cornstarch. It may seem like a small addition, but it plays an important role in both the texture and the shape of the cookies.
Cornstarch helps create two different cookie styles from the same dough. If you bake the cookies for a shorter time, they stay soft, chewy, and slightly sticky in the best way. If you leave them in the oven a few minutes longer, they become crisp, golden, and full of deep caramel-like flavor.
It also helps control spreading. Oatmeal cookies can spread more than expected because they usually contain less flour compared with the amount of butter. That means the dough has less structure and can flatten quickly as the butter melts in the oven. Cornstarch absorbs extra moisture and gives the cookies more stability without making them heavy, dry, or floury.
Another benefit is that this oatmeal cookie dough does not usually need chilling. If the dough feels too sticky to roll, you can chill it briefly for 10 to 20 minutes. You can also lightly dampen your hands with cold water, dry them off, and shape the dough more easily.
Oatmeal Cookie Ingredients
• Flour: gives the cookies structure.
• Baking soda and baking powder: using both helps create the best texture.
• Salt: balances the sweetness and enhances flavor.
• Ground cinnamon: optional, but it adds warmth and classic oatmeal cookie flavor.
• Cornstarch: helps make the cookies chewy or crisp, depending on the baking time.
• Butter: adds richness and flavor.
• Brown sugar and granulated sugar: brown sugar makes the cookies chewier, while granulated sugar helps them bake crispier. A mix of both gives the best balance.
• Egg: binds the dough together.
• Vanilla: adds sweetness and depth.
• Oats: old fashioned rolled oats give the cookies their signature texture.
How to Make Oatmeal Cookies
1. Whisk the dry ingredients. Combine the flour, baking soda, baking powder, cornstarch, salt, and cinnamon in a bowl, then set the mixture aside.
2. Cream the butter and sugars. Beat the softened butter with the brown sugar and granulated sugar until the mixture looks smooth and no dry sugar crystals remain. Add the egg and vanilla, then mix until combined.
3. Add the dry ingredients. Stir the flour mixture into the butter mixture just until combined.
4. Fold in the oats. Add the rolled oats and any optional mix-ins you like. Mix gently so the dough does not become tough.
5. Portion and bake. Scoop the dough into portions of about 2 tablespoons each, roll into balls, and arrange on a parchment-lined baking sheet.
6. Cool properly. Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack. This helps prevent overbaking and keeps the bottoms from becoming soggy.
What Oats to Use for Oatmeal Cookies
Old fashioned rolled oats are the best choice for oatmeal cookies. They have the right size and texture to absorb moisture evenly while still keeping the cookies hearty and chewy.
Steel cut oats are too firm and small for this recipe, while instant oats and quick oats absorb liquid too quickly and can change the texture and baking time. For the most reliable result, use rolled oats.
Optional Oatmeal Cookie Mix-Ins
This is where you can make the recipe your own. Cinnamon is a classic addition, but you can leave it out or pair it with other flavors. Good options include:
• Spices such as cardamom, allspice, or ginger
• Chocolate chips or chocolate chunks
• Caramel chips
• Toffee bits
• Unsweetened coconut flakes
• Chopped candy bars
• Chopped nuts, especially walnuts
• Raisins or other dried fruits, chopped if large
• A mix of several add-ins together
For spices, adjust the amount to your taste. A good range is about ¼ to ½ teaspoon, especially if you are combining more than one spice. For chocolate, nuts, dried fruit, or similar mix-ins, about 1 cup total is a good amount.
How to Store Oatmeal Cookies
Baked oatmeal cookies are best enjoyed within 3 days. Store them in an airtight container or plastic bag at room temperature to keep them fresh.
Raw oatmeal cookie dough can also be frozen. Portion the dough, roll it into balls, and arrange the balls in a single layer on a baking sheet. Freeze for about 1 hour, or until solid, then transfer the dough balls to a freezer-safe bag or container. The dough will keep well in the freezer for about 3 to 4 months.
To bake frozen cookie dough, you can thaw it completely at room temperature or overnight in the refrigerator, then bake as directed. You can also bake the dough from frozen and add 3 to 5 minutes to the baking time. Cookies baked from frozen may turn out slightly thicker.
More Cookie Ideas
• Double chocolate sandwich cookies
• Apricot jam sandwich cookies
• Giant Nutella stuffed cookies
• Danish butter cookies
• Eggless chocolate chip cookies
Oatmeal Cookies Recipe
- Author: Mimi
- Total Time: 40 minutes
- Yield: 12 cookies, approximately
Description
These homemade oatmeal cookies can be baked soft and chewy or crisp and golden. Cornstarch helps improve the texture and reduces excess spreading, making this an easy and reliable oatmeal cookie recipe.
Ingredients
- ¾ cup all-purpose flour
- ½ teaspoon baking soda
- ¼ teaspoon baking powder
- 2 teaspoons cornstarch
- ¼ teaspoon salt
- ¼ to ½ teaspoon ground cinnamon, optional
- ½ cup unsalted butter, softened to room temperature
- ½ cup packed brown sugar, light or dark
- ¼ cup granulated sugar
- 1 large egg, at room temperature
- 1 teaspoon pure vanilla extract
- 1½ cups old fashioned rolled oats
Instructions
- Preheat the oven to 350°F. Line a large baking sheet with parchment paper and set it aside.
- In a medium bowl, whisk together the flour, baking soda, baking powder, cornstarch, salt, and cinnamon.
- In a large bowl, cream the butter, brown sugar, and granulated sugar until smooth, about 2 minutes on medium speed with a stand mixer. Add the egg and vanilla, then mix until combined.
- Add the dry ingredients to the butter mixture and stir just until combined. Fold in the oats and any optional mix-ins. Do not overmix.
- Portion the dough into 12 balls, using about 2 tablespoons of dough for each cookie. Arrange the dough balls on the prepared baking sheet, leaving about 1 inch of space between each one. If the dough is too sticky, chill it for 10 to 20 minutes.
- Bake in the center of the oven for 10 to 11 minutes for soft oatmeal cookies or 14 to 15 minutes for crisp oatmeal cookies. Soft cookies should be golden around the edges and slightly underdone in the center. Crisp cookies should look matte on top and golden throughout. Cool on the baking sheet for 5 minutes, then transfer to a wire rack to cool completely.
- Prep Time: 10 minutes
- Bake Time: 10 minutes
Enjoy!