DIY Finishing Salt (Maldon, Fleur de Sel) I've found links here and here on making finishing salts, but this isn't the kind I'm talking about.  These are just mixtures of salt and some flavoring.

I'm referring to salts like Maldon Sea Salt and Fleur de Sel.  I know that these have (purportedly) minerals that make the salt taste richer.  Back when I was working in a kitchen, I was taught that part of what makes these nicer is that they're large crystals that dissolve slowly on the tongue (instead of nearly-instantly like your run-of-the-mill Morton's).

So basically, I want to try making my own large salt crystal flakes.  Maybe I'll use kosher salt instead of iodized salt, but the goal is to get large crystals that look like this, or even larger.

Finally, the questions:


Has anyone done this before?  
What should I keep in mind?
What should I look out for?
How can I maximize crystal size?
Is there any overlap with growing crystals in general?
I boiled 2 cups of regular sea salt to completely dissolve in 1 cup water then put it in a flat tray in the dehydrator on the jerky setting - the next day I did have a load of big crackly crystals and some dust.