With the mixer on low speed, slowly mix the dry ingredients into the wet ingredients until combined. It helps to use a ¼ cup measuring cup or large spoon for this. The cookie dough will be on the thicker side. Divide the dough in half and place each onto plastic wrap. Pat down each to create a disc shape. Cill in the refrigerator for at least 3 hours or up to 3 days. Do not skip this step.