I’m just a native born Texan, so need some help understanding what the hell shave ice might be. I’ve only heard of it in reports of Obama’s vacations in Hawaii.
I vacationed in Hawaii for 10 days and never encountered anything called shave ice.
Here in Texas we’ve had snow cones since the 1940s and that’s crushed ice with various flavorings available. It’s not shave ice (whatever that is), but just finely crushed ice.
Same thing, different process. Block of ice, scraper type tool, shave into container and add flavoring.