Somewhere in the mid-to-late-80s, my Vietnamese mother caught on to the evils of Monosodium Glutamate. It was clear that MSG had to go, but there seemed to be no adequate substitute. Regular salt didn't have that extra little je ne sais quoi, the quoi now rapturously popularized as umami or the Fifth Taste. Soy sauce had that added depth but could sometimes be overpowering in both color and taste. Nuoc mam, or fish sauce, had a pungency that required it to be used only sparingly.
Infinitely resourceful and a woman of great cunning, Mrs. Thao, as she is known in certain milieus, investigated the back alleys of Chinatown and penetrated the fluorescent obscurantism of Japantown's mini-malls.
Her golden discovery was this: Natural Mushroom Seasoning, Alternative Substitute for MSG and Chicken Essence.
For years I watched her sprinkle the tiny, tawny pellets into soups and stir-fries. After I moved out, she would always give me a jar of what I came to call the "magic mushroom seasoning." I never saw the original packaging. The mysterious substance would appear in old containers that once housed western spices and condiments with "mushroom seasoning" scrawled in my mother's singularly illegible handwriting on paper scraps scotch-taped around their middles or to their lids.

One day recently, I finally cornered her. "Mom," I said. "I'm over thirty years old. A grown woman. Kind of. I think it's time I knew what this so-called mushroom seasoning really is and how to procure it myself."
She looked at me for a few seconds. "I don't remember where I got it. Somewhere on Clement St. probably."
I stared back at her, mind working. "It's MSG isn't it? I knew it. If it is, I can handle it. I promise. I won't tell the others."
Wordlessly, Mrs. Thao turned her back on me and walked into the pantry. She squatted to the floor and moved aside a 10 lb sack of rice. A flurry of plastic grocery bags, pocket packs of Kleenex, a box of expired Advil Cold & Sinus, and bags of green tea leaves and dehydrated black mushrooms flew past her head and landed at my feet. Finally, I heard the heavy rustle of thick foil packaging.
Hair tousled around her head like a floating bird's nest, my mother handed me that which I coveted: the original packaging of the now infamous magic mushroom seasoning:
A fascinating glut of information confronted me. My eye knew not which path to follow first. Buddhist swastikas, the regally pale daikon, the triple-decker Chinese-English-Vietnamese product name. From whence did it originate? What did the slightly ominous "SETSCO Test No (Chinese characters): W2136001" mean? Was this an experimental product, not yet legal on the U.S. market? Or did "GENERATION II" mean second generation, so more advanced and more healthful and tastier than the original incarnation? "No M.S.G.," "Cholesterol FREE," 0% of something in Chinese probably bad like MSG or cholesterol, the yellow triangle in the upper left corner assured me. I was informed that there were both calcium & Vitamin B lingering in this salty dust. And plus or minus 400 g of it in one package. But what kind of mushrooms were in this "mushroom" seasoning? Were those shitakes? What were all those other vegetables doing in the photo? Had they been involved in the flavoring too?
More of the mystery unraveled across the back of the package.
Here I learned of the technological prowess that had gone into developing this super seasoning:
"Using modern technology and special technique of extracting the relevant ingredients from mushroom, we are able now to enjoy the natural seasoning tasting as a substitute to MSG."
And finally, what I most burned to know--the ingredients:
But far from resolving the mystery, this list only opened the door onto another, more disturbing, labyrinth, like a sparkling David Bowie beckoning me ever deeper. For not only were these just the "Main ingredients," suggesting that there were untold numbers of minor players left uncredited, but even more importantly, the kind of mushroom was not specified. And why did the mushroom have to be acted upon by "modern technology and special technique" to be divided into "powder" and "extract," leaving some other mushroom parts unaccounted for? Why had Vitamin B and calcium been deemed the most appropriate nutritional supplements?
I knew more answers would be found with the product's manufacturer, but even this avenue of inquiry led to a cipher wrapped in a riddle. . . all covered in secret sauce. My magic mushroom seasoning was a Product of Singapore, packed by Po Lo Ku Trading company, which also seemed to be in Singapore. But then there was also this other entity, HSinwell Co., Ltd, which seemed to belong to the next line of all-caps: TAIPEI TAIWAN. But then what was this "Vegetalk Food Supplies Pte Ltd (Singapore)" listed at the very bottom? I figured that "Ltd" was "limited" but what was "Pte"?
The Internet took me by the hand and led me to the site of one Po Lo Ku. It turned out to be a registered trademark of the Hsin Sui Industry Co., a Taiwanese company (remember the "HSinwell Co., Ltd" on the packaging? Close enough...). The Singapore connection is through the exporter, Vegetalk Food Supplies Pte Ltd ("Pte" stands for Private, as in the very VIP exclusive sounding "Vegetalk Food Supplies Private Limited"). Incidentally, the Vegetalk website has an amazing tiled menu that features tiny vegetables that slide into view when your mouse passes over them (the radicchio and bok choy are my favorites).
Back on the Poloku website, an October 2007 press release announcing the introduction of its mushroom seasoning into India's markets offered some illuminating highlights. Company sales manager Hung-Te Sheu touts the texture of what seems to be their star product as superior to mere mushroom powders, boasting:
Through my various researches I was further able to ascertain that the mushrooms used are in fact shitake, though of a "special breed":
"Aginomoto" is a charming synonym for MSG. I also learned that the mushroom intensity can be varied according to desire:
"We make client-based mushroom seasoning. Some clients demand more mushroom content while other's want less. We are involved in B2C (Business to client) so far."
If there remains a single person who is unconvinced of the superiority of mushroom seasoning to aginomoto/MSG, here is Hung-Te's further testimony:
The press release leaves us with a final endorsement of the magical allure of their seasoning:
I hadn't ever considered the sweetness of mushrooms, but perhaps that was the secret to the seasoning's textured flavor, an almost supersensory sweetness underpinning the savory. After returning from down the rabbit hole, I realize it looks the same, tastes the same, may still have the same amount of unknown harmful chemicals. I continue to sprinkle my soups and stir-fries with my magic mushroom seasoning. Am I persisting in dangerous ignorance or have I reached the practical limits of my knowledge about the origins of my food and acting as best I can considering what I have learned? Or should we stop talking about mushroom seasoning and just enjoy it, in the spirit of Jonathan Richman when he sings:
not to talk about it
He gave us the wine to taste
and not to discuss
so let's taste it, let's taste it
don't criticize it and waste it"