It's fairly dependant on how much detail you want to have, as imho any method that involves bolean operations gives you completly the opposite of control and flexibility. Boolean ops are very unstable in maya and anything more complex than the demo in elephantinc's video will likely not work in maya.

Another possible option is downloading a freebie shatter tool (pulldownit, etc) & Rigid Body Dynamics plugin (bullet, etc), as maya's is pants.

Or possibly, using an nCloth tearable surface as the surface of the ice.

cheers,
Chris