I didn't know what it was called at the time I first saw it but I saw one of these at a restaurant in town. The place has an open ended kitchen with a bar right by it where I had dinner. I saw the steaks in their little jacuzzi and asked the Chef about it. Had a really fantastic strip steak that had been prepared a similar way. One of the best steaks I have had in KC with some compound butter.
http://www.theriegerkc.com/