Unfermented soya bean curd eaten as a foodstuff (4)
I believe the answer is:
tofu
(Other definitions for tofu that I've seen before include "Soya bean product used in Asian and vegetarian cookery" , "Substance used in vegetarian cookery" , "'Soft white food, made of soy milk (4)'" , "Unfermented soya bean curd" , "Soya bean food" .)