Ponzu is an essential staple to have in your cabinet if you frequently cook Asian food. It is used as a condiment and as a marinade, and has a zingy, tangy flavor profile. This sauce pairs well with everything from meat, to seafood, to vegetables. This sauce, however, is not well-known outside of Japan.
Ponzu has a citrus base to it and is made with rice wine, rice vinegar, bonito fish flakes, and seaweed. After the liquid portion is strained and cooled down, it is infused with yuzu, a Japanese citrus fruit. However, other types of Japanese citrus fruits like sudachi, daidai, and kaposu have been known to be used and infused in Ponzu.