If you are allergic to dairy products, but you want to make a cake that needs milk, you can use tofu instead and it tastes just as good! (my friend does this)
it is a type of soy protein.Bean curd - go on you tube and see if you can find the episode of "how it's made" they have episode on tofu and its defiantly bean curd/ soya beans.
Tofu is made of ground soy beans processed by a machine that churns the soy beans. Then you shape it and drain it. Tofu is a bland but an easy to digest vegetarian food, made from soybeans, water and...
http://www.answers.com/topic/tofuGrocery stores have it, refrigerated. Some keep it in the produce section, others place it in the health food section.