stink bean

— Parkia speciosa (common name: petai in Malay; twisted cluster bean or stink bean) is a tropical leguminous tree of the family of the Fabaceae, subfamily of the Mimosoideae. It is found in Malaysia, Indonesia, Thailand and northern India, and the cooked beans are used in cooking, mainly in seafood recipes.

— As the name suggested, stink beans are rather unique because they have strong and distinctive bitter taste and pungent odour contributed by the presence of cyclic polysulfide compounds such as hexathionine, tetrathiane, triothiolane, pentathiopane, pentathiocane and tetrathiepane. Nevertheless, stink beans remain popular as a form of delicacy among Southeast Asians whether they are eaten cooked or raw.