Blackcurrant was a fruit from Earth. It was also a flavour used in jelly babies. (PROSE: Corpse Marker)
The Eleventh Doctor recognised the smell of blackcurrant in buchu oil. (TV: Death of the Doctor)
Behind the scenes
A blackcurrant jelly baby card was one of 50 collectible cards in series 1 of The Adventure Games, being found in City of the Daleks.