Add more dry ingredients: If you have additional dry ingredients (such as flour or oats) on hand, you can try mixing in a little bit at a time until the dough becomes less greasy. This may help to absorb some of the excess fat. Bake for a little longer: If the cookies are still too greasy, you can try baking them for a few extra minutes to help the excess fat cook-off. Just be careful not to over-bake them, as this can cause them to become dry and crumbly.