Tofu is a spongy cake made from the curds of mashed soybeans. Tofu isn't very flavorful unless you cook it with other ingredients and seasonings.
Tofu can be described as a kind of cheese made from soy milk, and it often shows up on menus as "bean curd." Many East and Southeast Asian cuisines include tofu cooked in various ways, including deep fried, stir fried, curried, and grilled. Tofu is considered a healthy food, since it's high in protein and relatively low in calories. The word tofu is Japanese, from the Chinese doufu, a combination of dou, "beans," and fu, "rotten."