How do you make oatmeal cookie dough moist?

- Add extra butter or oil. This will help to keep the dough from drying out and make it more tender.

- Use brown sugar instead of white sugar. Brown sugar contains molasses, which helps to keep the dough moist and chewy.

- Add some sour cream or yogurt. These ingredients will add moisture and richness to the dough.

- Chill the dough before baking. This will help to prevent the dough from spreading too much in the oven and will also help to keep it moist.

- Don't overbake the cookies. Oatmeal cookies should be baked until they are just set but still slightly soft in the center. Overbaking will dry out the cookies and make them crumbly.