Yes, you can mix cookie dough in a stand mixer. In fact, it's quite easy to do. All you need is a mixer like Ventray MK37 Tilt-Head Stand Mixer (4.5-QT). Just attach the dough hook to the mixer and slowly add the ingredients to the bowl. Then, turn on the mixer and let it do its job! The mixer will thoroughly mix the dough and make sure all the ingredients are well incorporated. After a few minutes, your cookie dough will be ready to use!