Corn nuts are made from dried corn. I hope we are referring to the same snack here that sometimes is a jaw breaker lol.
Basically over here we get the raw corn and remove it from the Cobb, a process we call shelling. We then dry it either through sun dry or air dry processes to remove the moisture. Once dry you can deep fry then spice it up with your favorite popcorn spice or chuck it in the oven and bake them.