In 2001, when I had to dress up my eight-year-old daughter Sara in Dutch costume for a third grade event, I found instructions for a Dutch hat on an origami listserv. The lady who shared it was so kind to send me a diagram and description, which I ended up sharing online. Over the years it has been my most visited site, with visitors from all over the world.
I recently made he tutorial above, You can download the original instructions, with small drawings here.