I have made it. If there are a million ways to make then 999,999 of them are wrong. It's the most basic recipe there is beyond boiling water. Water and flour. Maybe some salt, if one is feeling adventurous that day. If well sealed and kept dry it will last a very long time. You can eat it dry but you better have great faith in your teeth and your dentist. Otherwise it's best used as a filler in other liquidy dishes like a soup. Or your coffee.
It can't have a lot of nutritional value.
It lasts a while I would say. About 153 years.
[video=youtube;Ga5JrN9DrVI]https://www.youtube.com/watch?v=Ga5JrN9DrVI&t=323s[/video]