Why Are My Oatmeal Cookies Not Flat?
There can be different reasons why oatmeal cookies are not flat. Using too much flour or not enough butter can make the cookies tall and puffy. Additionally, using baking powder instead of baking soda can also lead to the same result. Finally, if the dough is too cold or has not been flattened before baking, the cookies may not spread as much, resulting in a taller cookie.