Is there any simple procedure to make table sugar crystals from HFCS? I would presume if they were both comprised of glucose and fructose molecules in solution, and more importantly, if both behaved similarly, then HFCS in solution should be as easy to convert to sucrose crystals as table sugar in solution is.
Not that I know of.
AFAIK, crystalline sugar has a higher market price, so if there was a cheap way to do it the market would drive it.
I'll conveniently ignore the artificial price supports on table sugar...
No. Table sugar consists of sucrose, which is made of a fructose and a glucose molecule covalently bonded (that is, they are physically connected). Your body separates the two sugars, then converts the fructose into glucose (or whatever sugars the body needs). The various glucose/fructose mixtures, since the glucose and fructose exist as separate molecules, are not easily converted into sucrose. They can be, through a chemical reaction, but you're unlikely to be able to do that in your kitchen.