I adapted this recipe from Betty Crocker...I send it as my son's snack for school and he loves them! They can be baked as breakfast cookies instead of bars. I freeze mine and take out night before or morning of.
Surprisingly low in calories I got this recipe from a low cal cookbook pamphlet I picked up at the grocery store. Super easy and so good, it has been a family favorite for years. Also Gluten-free depending on the chocolate chips used. I also mix my chips up using semi-sweet and dark chocolate.