Wash your cilantro very well, and pat dry with a paper towel.
Blend together your ginger, garlic, green chili, and lime juice into a paste
Add in the cilantro stems, then the leaves, and blend until the cilantro is all chopped up. Try not to blend into too much of a paste.
Pour into a bowl, Mix in salt and sugar. Taste and adjust seasoning by adding more salt, sugar, or lime if needed. Or water if you want your sauce thinner.
Serve immediately or store in the freezer or refrigerator in an airtight container. Enjoy!