Cold Pink Borscht in a Glass

A cold glass of borscht is a refreshing beginning to a hot-weather meal. My favorite is modeled after one at Barney Greengrass, an old Upper West Side Jewish delicatessen in New York, where pink borscht, served in a water glass, is always on the menu. The borscht can be made a day ahead. Indeed, a pitcher of borscht in the fridge can even substitute for lunch on a sweltering afternoon.