Originated from Northern Thailand, Northern Thai Green Chili Dip, called Nam Prik Noom in Thai, is one of the tastiest chili dips, mostly eaten with raw or boiled greens, sticky rice, or grilled pork or crispy pork rind. You can commonly find in the north of Thailand especially in Chiangmai province.
The key ingredient is Prik Noom' which is a kind of long slightly pale green chili grew in Northern of Thailand. Other ingredients include garlic and shallots. All of them grilled and combined together then season it with fish sauce, lime juice and sugar.
This Northern Thai Green Chili Dip is best to eat fresh, but now there are some brands you can stock for many months, and also the dried version for longer shelf life.