Rinse the chives, discard any yellowed spears, and pat the chives thoroughly dry in a towel. Cut them up coarsely into 1- or 2-inch lengths and fill a scalded, dry jar loosely.
Scald enough white wine vinegar or Oriental rice vinegar to cover the chives well and pour it into the jar. Let the vinegar cool, then cover the jar and let it stand for about 2 weeks, s