Tofu is made from soybeans, water and a coagulant, or curdling agent. It is high in protein and calcium and well known for its ability to absorb new flavors through spices and marinades. Due to its chameleon-like qualities and nutritional value, tofu, a staple of Asian cuisines for hundreds of years, has recently become popular in Western vegetarian cooking. So popular, in fact, that it is celebrated with its own annual festival and has almost become synonymous with veganism itself. Look for tofu in the produce section of your regular grocery store.