jīu yìhm
椒 is pepper, and 鹽 is salt, so 椒鹽 is pepper salt.
椒鹽 is also used in the Chinese word for pretzel.
A salt and pepper mixture used to season deep-fried dishes. Sichuan pepper (花椒 flower pepper) is traditionally used, but black and white pepper is common, too (possibly due to the former US import restrictions on Sichuan pepper).
salt and pepper shrimp
salt and pepper squid
salt and pepper chicken wings
salt and pepper fish
salt and pepper tofu