[Paul] is sick and tired of his homemade root beer being flat. He analyzed the problem with his carbonation techniques and ended up with a method of force carbonating beverages using dry ice.

One flavor, in particular, put Oasis Shaved Ice on the map: Butterbeer. Although at Oasis, it's called Budder beer. “The Budder beer flavor is legendary,” Tyner said, “Universal Studios ...