Kong-guksu (Cold Soy Milk Noodles)

Kong-guksu belongs to the hottest part of summer, when the market cucumbers are firm and the soybeans have to do the work of a whole meal. Cook the month you're standing in. This is not a bowl for winter longing. It is what you make when the room is warm before the stove is even lit.

The dish lives or dies by the kongmul, the soybean milk. Soak the beans until they swell, cook them just enough to lose the raw smell, then rinse off the skins if you have patience and grind them with cold water until the broth turns pale and heavy. I won't tell you this is difficult, but I will tell you where people ruin it: they overcook the beans until the flavor goes flat, or they season the whole pitcher before the noodles are in the bowl.

Salt at the table, not in the pot. Cold dulls seasoning, noodles change the balance, and every diner wants a slightly different hand. 손맛 is real. I still measure it, so it can be handed on: start with 1/4 teaspoon fine sea salt per bowl, stir, taste, then add a pinch more only if the soybean still tastes sleepy. The bowl should taste like soybeans first, sesame second, salt last.