Mushroom Salad (Yam Het)

Ingredients

Equipment Needed

• •Medium pot for blanching
• •Slotted spoon
• •Mixing bowl

Instructions

1. 1

   Blanch the mushrooms

   Bring a pot of water to a rolling boil. No salt. Drop the mushrooms in and blanch for 60 to 90 seconds, just until they soften and lose their raw squeak. Oyster mushrooms cook faster than king oyster. Straw mushrooms barely need a minute. Watch them, not the clock. When they look slightly translucent and feel tender when pressed, they're done. Pull them out with a slotted spoon and spread them on a plate. Do not rinse with cold water. Do not refrigerate. You want them warm.

   Warm mushrooms absorb the dressing. Cold mushrooms resist it. This is the single most important step. Dress while warm. That's the yam rule for anything blanched or boiled.
2. 2

   Build the yam dressing

   In a mixing bowl, combine the fish sauce, lime juice, and palm sugar. Stir until the sugar dissolves completely. Palm sugar is slow to dissolve, so press any lumps with the back of a spoon. Taste it. You should taste sour first, then salt, then a gentle sweetness rounding the edges. If the lime punches too hard, add a tiny bit more sugar. If it's flat, more fish sauce. Add the sliced chilies now. They steep in the dressing and release their heat while you assemble everything else.

   Lime juice goes in fresh. Not bottled, not from a squeeze bottle. Cut a lime, squeeze it, use it. Bottled lime tastes dead. Fresh lime has that sharp, floral bite that makes the whole dressing sing.
3. 3

   Combine and dress

   Add the warm mushrooms to the dressing. Toss gently with a spoon or your hands. Let them sit for one minute. That minute matters. The mushrooms are drinking the dressing right now. Then add the sliced shallots, lemongrass, and Chinese celery. Toss again. The shallots stay raw. Their bite is part of the architecture.

4. 4

   Finish with herbs

   Add the torn mint and chopped cilantro. Toss once more, gently. The herbs are not garnish. They're structural. The mint gives a cool contrast to the chili heat. The cilantro adds a grassy, citrus layer that locks the whole thing together. Taste the salad one final time. Adjust: more lime for brightness, more fish sauce for depth, more chili if you want fire. Transfer to a serving plate. Room temperature. Never cold. Eat it now.

   Tear the mint, don't chop it. Tearing releases the oils without bruising the leaf flat. You get bursts of menthol in every bite instead of a uniform flavor.

Chef Tips

• •Use a mix of mushrooms for textural range. Oyster mushrooms are silky and tear into natural strips. King oyster has a dense, meaty chew when sliced into medallions. Straw mushrooms are plump little pillows. Shiitake brings an earthy depth the others lack. Any single variety works. A mix is better. The yam dressing doesn't care what you put in it. It governs everything equally.
• •Do not use soy sauce. Not a splash, not a drizzle, not 'just for color.' Soy sauce is a Chinese condiment with a completely different flavor profile. Fish sauce provides salinity plus umami from months of protein fermentation. That depth is what makes the dressing Thai. Substituting soy for fish sauce in a yam is like substituting water for wine in a French reduction. The result might be edible, but it isn't the same thing.
• •Shallots must be raw and sliced thin. Some people blanch their shallots to soften the bite. Don't. The sharp, sulfurous crunch of raw hom daeng is part of the yam's design. It's a counterpoint to the soft mushrooms and the bright dressing. If the raw shallot burns your tongue a little, good. That means it's doing its job.
• •This is a weeknight dish. Fifteen minutes if you're slow. The mushrooms blanch in a minute. The dressing takes thirty seconds. The herbs get torn and tossed. There is no excuse to order delivery when yam het exists. Ajarn always said the simplest dishes are the hardest to hide behind. If the balance is wrong, you taste it immediately. That's what makes the yam the best teacher.

Advance Preparation

• •Mushrooms can be cleaned and torn ahead of time. Store in a damp paper towel in the fridge for up to a day.
• •Shallots and lemongrass can be sliced and held in separate containers for a few hours.
• •The dressing cannot be made ahead. Lime juice oxidizes and loses its brightness within thirty minutes. Mix it, use it, eat it. Yam waits for nobody.

Frequently Asked Questions

Nutrition Information

1 serving (about 230g)