Sea prune



The sea prune is a small fruit which is somewhat purple in color and grow in the ocean. In traditional Water Tribe cuisine, it is dried and boiled to make a chunky brown stew said to be an acquired taste. According to Hama, ocean kumquats taste quite similar to sea prunes if stewed properly.

Avatar Aang was not particularly fond of sea prunes, even warning Toph not to eat ocean kumquats, as they tasted similar.

Connections
The names of the sea prune and ocean kumquat are probably a reference to the sea cucumber, an echinodermic ocean-bottom scavenger which has been found to have medicinal properties, and is considered an aphrodisiac in the Far East due to certain aspects of its appearance. However, the sea cucumber is an animal, whilst the sea prune and ocean kumquat must be fruits, since the vegetarian Aang was willing to try them, and Sokka or Katara would have warned him if they were not compatible with his diet.

Trivia

 * A real-world kumquat is a small citrus fruit about the size of a blackberry or strawberry. A prune, on the other hand, is a fruit related to plums.