Dutch Stroopwafels are a much loved cookie in Holland. They are served fresh, the size of a dessert plate, packaged they are usually between 3-4 inches. I would prepare fresh ones on site as well as having packaged ones for sale. The preparation can be seen on this video on Youtube; https://youtu.be/7oB50N96Ce4 They have long been a popular item in Holland and are now going more international. They are currently gaining popularity as a fast fuel food for athletes. They are fairly simple to make fresh and are a delicious treat. The packaged ones keep really well and can be warmed for added flavour to soften, changing them from a wafer to a softer consistency.