Prune ice cream is a type of ice cream that Patrick eats in the episode "Old Man Patrick."
It is dark purple ice cream that contains prunes and is served in white bowls.
Role in episode
Clarabelle tells Patrick that they are serving prune ice cream at Shady Shoals Rest Home. Patrick goes to Shady Shoals with a few other old people, runs in, eats all of it, and gets a brain freeze.