Cold Noodles with Dipping Sauce

The first time I had hiyashi somen they were a revelation. It was a staggeringly hot day, and a Japanese friend was cooking dinner. When I found out we were having noodles, I was a little dismayed—I was more in the mood for a salad than for pasta. Then she brought out (what I now know as) hiyashi somen, in little bowls on top of ice with a cool dipping sauce to accompany them—perfect food for a blistering day.

You can top the somen with poached and chilled shrimp or room-temperature