Roasted Black Beetles
In the 800s a Droyne Sport, visiting Earth on a diplomatic mission, discovered Black Beetles. Delighted by their crunchiness and flavor (especially when roasted) he arranged to import some to Droyne communities in the Spinward Marches where they turned out to be very popular. His oytrip has been importing them ever since(though imports are sometimes sporadic and always in small numbers given the distances involved). They are a popular delicacy among the Droyne.
References: GURPS Traveller Alien Races 3