A delicious Thai version of salsa. Everyone I make this for loves it. Meant to accompany grilled fish, but you will find many uses for it. I usually add at least twice as much cilantro and double the recipe as guests will eat all of it. It is just as good the next day. I have mistakenly omitted chili-garlic sauce and still tasty. Use a sweet onion like Vidalia or a red onion if unavailable.