This sounds like a good idea. Would it work?
Machine Makes Instant Ice Cream
USING a new style freezer, freshly made ice cream can be produced in 40 seconds and delivered to a waiting customer.
The ingredients of the dish, after mixing are poured into the top of the machine where they are broken into a fine spray by an atomizer rotating at the speed of 3,000 turns per minute. The spray is thrown against the cylinder wall, which is maintained at a low temperature, where it freezes instantly.