Juan Cheng brand pixian doubanjiang broad-bean and chile paste is the “holy grail of authentic Sichuan cooking,” eatahorse says. The place where you can find it: Boston’s Posharp Store, which sells online. chilibeanpaste agrees that Juan Cheng is essential, and recommends chopping the paste very fine before using it, “which seems to release more flavor.”

Discuss: Authentic Sichuan Chinese Ingredients

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