This rare bean is only available deep within the Jungle of Dread, but its rind imparts a pleasant, sweet flavor to food. As a result, it is one of Gnawnia's most expensive delicacies.
The Pigmy Swarm Mice at JoD drop these. They are attracted by Gouda and Vanilla Stilton cheeses. Use your best Shadow trap.
Vanilla Beans are one of the ingredients to craft Vanilla Stilton and Vengeful Vanilla Stiltons.