These Chewy Oatmeal chocolate chip cookies are chewy and soft. They are our family’s favorite oatmeal chocolate chip cookie recipe! They’re loaded with lots of chocolate, a touch of cinnamon, and are super easy to make!
Preheat oven to 425 degrees Fahrenheit. Grease baking sheets or line with silpat mats. Cream together butter, both sugars, eggs, and vanilla for 2 minutes until the mixture is pale and fluffy.
Mix in baking soda, salt, cornstarch, and cinnamon. Then add stir in flour until just barely combined—over mixing will make the cookies tough.
Stir in oats and chocolate chips. Scoop ¼ cup of dough and shape into round balls and bake until the top and edges are golden, 6-8 minutes, watch them, at 425 degrees they go from golden to burned quickly.
Cool cookies on baking sheet for 10 minutes before transferring to cooling rack. If you make smaller cookies I recommend you decrease the temperature (I would do 375 degrees) be sure to keep your eye on them, they will cook much faster.