soya beans.
It's poss to make your own . Soak , boil and strain beans the liquid is soya milk the solids okara or soya bran . Add lemon juice to soya milk and let it curdle then drain thro' muslin.............Or then again buy it!! I like Cauldron best.
I generally do stir fries with it. cube it and fry in hot sesame oil until browned on all sides , lift out ,stir fry veg and noodles add tofu back. we are having it tonight.