Sansho pepper is a Japanese spice characterized by its prized aromatic peppercorns, green color, and a floral, tangy, lemon-like flavor. It is a part of the famous seven Japanese spices and is closely related to Sichuan pepper.
The shrub is grown in Japan, but also in China and North Korea. Traditionally, sansho is used as a seasoning for fish and barbecue dishes, or sprinkled over
unagi grilled eel. It pairs extremely well with other spices such as sesame and ginger.