Buyers guides

Look for red Sichuan peppercorn, the common variety, rather than the rarer green one, unless a recipe specifically calls for

Round wrappers suit gyoza and potstickers, while square wonton wrappers suit soup dumplings and wontons, so check the shape matches

Bulldog is the brand most Japanese restaurants use, and it is the easiest tonkatsu sauce to find in the UK,

Lee Kum Kee makes the char siu sauce most home cooks reach for in the UK, and it is stocked