Serve this relish with chips as a good-luck appetizer at New Year's gatherings.
Wear plastic or rubber gloves when working with hot chile peppers, such as serranos, to prevent the volatile oils from burning skin and eyes. If your bare hands touch the peppers, wash immediately with warm soapy water. Wash utensils and cutting board with hot soapy water.
QUICK PICKLING Submerge chiles in a vinegar bath for 30 minutes to soften texture and mellow flavor. For this relish, seasoned rice vinegar has the right amount of sweetness.