Seitan consists of wheat protein and is traditionally used in Asia as a meat replacement, making it a perfect ingredient for vegetarian dishes. Seitan is produced from pure gluten and can, unlike tofu, be used in a similar way as meat.
Sesame oil is made from roasted sesame seeds by a process of cold pressing. It is used as a separating agent and as a mild perfume for dishes.
Soy sauce consists of fermented soy beans and is traditionally used for seasoning Asian dishes. The soy beans are brewed together with water and grain. The longer they are brewed, the lighter and rounder they become. Dark soy sauce contains more salt. Soy sauce is also considered a natural flavour enhancer.