Walk into a Mexican home and you will see something like this sauce on the table. It's used as a condiment to add zing to absolutely anything and everything. This version is light and intensely flavorful.
In a small bowl, combine peppers, cilantro, onion, olive oil, vinegar, lime juice, and salt. Let stand, covered, at room temperature up to 4 hours to allow flavors to blend. Store in the refrigerator up to 1 week.