I had wondered if this goblin drink might be similar to kombucha tea, given the goblin love for all things mushroom, and the description of "steamed vegetable" I've seen around.
A simple combination of Reishii mushrooms, maple sugar, and distilled (or movapolos) water + dark or fire crystal doesn't seem to work though, nor does adding the fingernail sack, to make this form of "rot tea."
Knowing SE, even if it is a mushroom drink, it probably has some outlandish ingredient in it. I'm hoping it's not a Goblin cup, because those are fairly hard to come by.
Has anyone else experimented with mushroom combos?