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Cracking the Coconut, by renowned chef Su-Mei Yu
A brief biography of chef and author Su-Mei Yu
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 The Pitfalls of Som Thum

    My second night in Bangkok was spent in a restless, and tortuous sleep. A night filled with successive nightmares of burglars and demons, conjured up from my subconscious. They rose from the depths of my mind and danced about in the dark, terrorizing me as I lapsed in and out of sleep. My jet lag, compounded with my colon rebelling and rejecting an earlier gluttonous lunch of a fiery hot salad called som thum.

      A friend has taken my husband Bob and me to a restaurant by a busy intersection outside of Bangkok proper for a treat, or so it seemed at the time. It is famous for its northeastern style grilled chicken and som thum. I should have taken heed not to overindulge, for I had just barely arrived one day before. I should have been less macho, and not consumed enough chiles to burn a hole through my stomach. But I am a pushover for som thum, and a real addict for the super spicy and sour salad, the real thing, especially if it is truly from the northeastern province known for the hottest and most highly seasoned som thum in Thailand.


     Having lived in America for over forty years, I almost never ordered som thum in Thai restaurants. I would not waste my appetite on a watered-down Bangkok style laden with MSG. for flavor. It not only lacks the pizzazz, but also the gutsy punch of the northeastern Thai version. When push comes to shove, I would rather eat my own and only when I most craved it. For even my som thum could not measure up to the real thing. Mine is the milder Bangkok version sans MSG, made with a handful of shredded unripe green papaya, American grown tomato that lacks tanginess, and lime without the acidity, unlike the kind from Thailand. My som thum also lacks the pickled salted baby crabs because there’s none to be had in America. Instead, I would add the second-rate dried shrimp available as the best one could find in an Asian supermarket and a bit of fermented shrimp paste I bought back from my previous trip to Thailand. To make it more palatable, I added a tablespoon or two of dry-roasted crushed peanuts. I had to be satisfied. But it was never good enough to curb my craving for the real som thum. How I counted the days when I could be back in Thailand to savor the real thing.

     The vast restaurant was a desert with the exception of one table filled with loud happy juiced -up people. My friend is a true gourmet and I completely trusted her judgment when she said their som thum is superb. She ordered the restaurant’s famous grilled chicken. It has been flattened and marinated with tons of garlic, white peppercorn and salt before it is grilled. The crispy and slightly dried bird came chopped in bite size pieces accompanied by two kinds of dipping sauce, one sweet and a bit spicy and the other, salty and very spicy. With it came a small plate of som thum and a basket of warm sticky rice.

     The som thum looked dangerous and formidable. I was challenged, as I was quite hungry. It had less shredded papaya than I expected, but instead was filled with ingredients such as lime rinds, sliced baby eggplants, a sour and acidic fruit the Thai called mah eng, sliced green beans, sour unripe tomatoes, shallots, severed pieces of pickled and salted baby crabs, all heavily-dosed with fermented fish paste, garlic and several tablespoonfuls of dried and fresh chiles, and then slightly pounded. One bite of the som thum temporarily distinguished my tiredness from jet lag and kicked in my appetite. I ate my fair share. My friend ordered another plateful of the same venomous stuff.

     Right after the meal, it did not take long for me to realize I had made a terrible error. For the rest of the day, the after-effect of the som thum began to play out its hand. It plagued my body, sending my stomach rumbling. Through the night, between frequent intervals of bathroom visits it exorcised ghosts and goblins from my worn-out psyche. Som thum, I learned, no matter how much one loves it, is not recommended as a welcome-dish to Thailand. Better leave it to the natives whose internal organs have been bronzed by years of chile baths. As night stretched out into eternity, I longed for a simple grilled-cheese sandwich.


— Su-Mei Yu

Kao Soy

     In 1988 my sister Marian and her husband bought a house in Lum Phon, a small old provincial town north of Chiang Mai. Their lovely house was set in the midst of rice fields, along a pristine creek where farmers fished for conch shells, tiny crabs and fish.

     During my visit, we marketed everyday like the way the Thais do. Some days we would drive into the big city, Chiang Mai, and shop at one of the numerous markets. While at other times, we would drive into the sleepy town of Lum Phon. The market is across from a magnificent ancient Buddhist temple, built around 700 A.D., with its golden Mon style spiral sparkling in the sun. I loved this small quiet country market best.

     On one of our Lum Phon marketing trips, Marian took me to a food stall over looking the river near the market. A woman in her 40’s held fort at the tiny immaculate space where she cramped her cooking implements along the narrow sidewalk. Her one and only specialty was kao soy, the well-known noodle of the north. Like noodle vendors I remembered from my childhood, she served her noodles in small porcelain bowl decorated with an imprint of a chicken. Even before tasting her noodles, I was already charmed.


     Kao soy, with a curry-flavored chicken sauce, garnished with fresh chopped shallots, pickled mustard greens, minced cilantro, green onion, crispy fried noodle, and roasted chile-in-oil, and then finished with a couple squeezes of lime juice, is believed by some to have originated from the Muslim community in northern Thailand. But some dispute this historical fact, believing that it came from the Shan, an ethnic people who live in the eastern mountainous ranges of Myanmar. For the word itself is of Shan origin, with kao meaning rice, and soy meaning sliced, an implication for the technique of making noodles.

     Until my recent trip to Myanmar, kao soy served by the woman vendor of Lum Phon was the one I was familiar with. Hers was the measure of excellence I adhered to. Her fettuccine-sized egg noodles were tender and slippery with a little “give” to the bite. The curry sauce with chunks of tender juicy chicken was sublime. It had the perfect consistency, not too thick or soupy, with just enough pungency to it, while at the same time not overpowered by the forceful aroma of the curry powder. The crispy noodles was slightly salty, crackling, and not greasy. But most of all, her roasted chile-in-oil with its fiery bite laced with a smoky, slightly bitter taste was what made her kao soy special.


     Then I went to Myanmar. One of the cities I visited with my husband Bob and my friend, Vithi, was Nyaung Shwe, a city in the southeast of Myanmar, home of the Shan people. We had an official woman guide named San San. She is a Shan. We went on a speedboat across the Inle Lake to a market famous for both real and imitation antiques. Among the crowded wooden stalls overflowed with Buddha heads, jade necklaces, and silver opium pipes, etc. were food stalls. My friend Vithi had set his heart on eating the local Shan dish of cold glutinous rice patties cooked with fish and tomato. It is obvious he has been there before, because within minutes after starting his search he found the stall and set himself up to order. I, on the other hand, wanted kao soy. San San graciously asked one of the young boys from the stall to go and buy it for me. While waiting, San San encouraged me to try a snack made with custard-like tofu mixed with slivers of fresh cabbage, coriander, green onion, crispy garlic, lime juice and generous amount of chile-in-oil. She showed me how to dip or rather scoop the content with a piece of crispy fried tofu and chase it down with jumyit, fresh young crisp tender leek roots. And then it came.

     San San called the noodle khauk swe. It came in a small porcelain bowl with the chicken imprint. In the center of the bowl was fettuccine-size rice noodle coiled in a perfect mound. It was topped with a sauce that looked more like a stir-fry of bits and pieces of chicken in fermented bean paste. The garnishes were the same as the Chiang Mai version, consisting of chopped coriander, green onion, crispy garlic and peanuts. Tucked at the side of the bowl was a tablespoonful of the chile-in-oil. San San told me to mix and toss, in order to blend everything together before taking my first bite. She then pushed a plate of pickled greens and chiles toward and told me to take a bite of it after the noodles. Not only did this khauk swe not look like the Chiang Mai version, (the correct name of which I learned is kao soy haw, after the Shan Muslim.) oddly enough it tasted like one of my mother’s noodle dishes, a northern Chinese noodle called ja jeang mein. The khauk swe noodle was tender, buttery, slippery and slightly al dente. The chicken mixture was not greasy, but slightly chewy, set off by the fermented salty soybean paste. The chile-in-oil gave it the punch while the fresh herbs rendered the refreshing scents. The pickled greens balanced the dish with its crisp, sour and slightly peppery taste.

     During my short visit, I was to discover many variations of Shan noodle, or khowsen, all different and delicious. Trying hard to keep both my mental and palatal notes of each noodle dish I had eaten, I couldn’t wait to get home and cook.

— Su-Mei Yu