It is sold in the supermarket, about 100 yen ~ 150 yen each TOFU.
Tofu has become a known ingredient worldwide. It is prepared by adding gnigari (coagulating agent of marine origin) to soy milk that is obtained by squeezing boiled soybeans.
It is an ingredient appreciated for its richness in vegetable protein as well as for its nutritional value and its reasonable price.
Because it is a popular ingredient since ancient times and because of its versatility, there are restaurants specializing in food based on tofu.