Fusaka

 is a fancy spice common in Marquet.

On the Stream
Jarett Howarth asked Vox Machina to bring back some fusaka for him when they went to visit Ank'Harel. While in Ank'Harel, Scanlan came to believe that fusaka was some sort of illegal drug, and ended up being scammed into buying a large amount worth 20 gold for 400.