Uttaberry

From Memory Alpha, the free Star Trek reference.

Uttaberries are an edible, blueberry-like fruit native to Betazed. Lwaxana Troi enjoyed uttaberries, as did her valet, Mr. Homn. (TNG: "Ménage à Troi") Uttaberries are used to make uttaberry crepes. (DS9: "Armageddon Game")

According to the non-canon comic "Space Seeds", uttaberries can be used to make wine. In addition, a crop of the berries was ruined by chroniton particles on a farming colony in the Maltese asteroid belt.