A blueberry is a type of fruit that can be found growing in the Smurf Forest. It is usually used by Smurfs in the comic books.
Empath: The Luckiest Smurf stories[]
In the EMPATH: The Luckiest Smurf story series, blueberries are also used in addition to smurfberries for making jellies, desserts, and juice. The blueberry leaves are also used for smoking herbs in cigarettes.