We've never had/seen it before and it was a revelation. Finely sliced lemongrass that may be deep fried and them mixed in a chile/shrimp paste. We were eating straight out of the jar it was so good. But also great in pho. Our server said it's made by the boss. We bought an 8 oz tub for $5 to go. Is there a name for this delicious goo? Are there other versions worth trying?