Definitely Not Chicken

Morning everybody! Opened up a package last night from a Japanese friend and found the usual assortment of green tea, rice crackers and miso soup she sends. Also found a bottle of ... Goma butter? Had it on my toast this morning and found it kinda nutty, a little smokey, with a gritty texture.What I'd like to know is, is this some sort of yeast or mould spread like Vegemite or something really meant for human consumption? Any ideas or guesses as to what this is would be much appreciated! Seems to me my mom tried to teach me early on you shouldn't eat things if you don't know what they are. Bon appetit, Mom!