No, it is not possible to make gluten-free oatmeal cookies without oats. Oats are the main ingredient in traditional oatmeal cookies and provide their distinct texture and flavor. However, if you are looking for a gluten-free alternative, you can use certified gluten-free oats. These oats are processed in facilities that ensure they are not contaminated with gluten-containing grains. It's important to note that some individuals with gluten sensitivities or celiac disease may still react to oats due to a protein called avenin, which is similar to gluten.