Shrimp in Spicy Lime Sauce

From Mark Bittman in The New York Times. “This recreation of a Cambodian dish may not be entirely authentic, but it is really good, a striking balance of mildly sweet and mouth-puckeringly sour. And if you start with peeled shrimp, it is also ridiculously fast. Let the lime-and-sugar mixture cook until it is syrupy; this won’t take long, about three minutes, but it will guarantee that the liquid coats the shrimp nicely.”