Ghee ( from Sanskrit for "sprinkled"; also known in Arabic as samn, meaning "ghee" or "fat") is a class of clarified butter that originates in the Indian subcontinent, and continues to be important in Indian cuisine as well as Egyptian cuisine. Ghee is made by simmering unsalted butter in a large pot until all water has boiled off and protein has settled to the bottom. The clarified butter is then spooned off to avoid disturbing the milk solids on the bottom of the pan. Unlike butter, ghee can be stored for extended periods without refrigeration, provided it is kept in an airtight container to prevent oxidation and remains moisture-free.[ Source: Wikipedia]

Tofu is soya bean curd made from coagulated soya milk. Soya beans are soaked, crushed and heated to produce soya milk to which a coagulating agent such as calcium sulphate or calcium chloride is added. The resulting soya curd is then pressed to give tofu. Tofu is sometimes known as soya cheese, and is sold as blocks packaged in water. It can be bought as silken tofu, which is soft and creamy in texture, or as a denser, firmer version. The firmer kind may also be purchased smoked or marinated. Tofu tends be fairly bland tasting and is best used in recipes where flavour is imparted by other ingredients. Firm tofu may be marinated, fried, stir-fried, deep-fried, sauteed, diced and added to salads or casseroles. Silken tofu can be used for dips, spreads, sauces and sweet dishes. As well as having a high protein content, tofu also contains calcium, iron, and vitamins B1, B2 and B3. Source: http://www.vegsoc.org/info/soya.html