Elderberry

This comes off ebonwood when a tree is shaken, which is a reason to hit the trunks a few times before you fell them while you are clearing a path through the corruption. It turns up rarely enough that a food stack is a byproduct of work you were doing anyway, never something worth a dedicated trip.

Shimmer turns these into Ambrosia, which is a considerably better meal than the one they give you raw. If you have a pool set up, hold a few back rather than chewing through them in the field.

The line on it is lifted from the insult a French soldier shouts down from the wall in Monty Python and the Holy Grail. Real elderberries, for what it is worth, will make you violently ill if you eat them uncooked.