Turmeric is the rhizome of a ginger-like plant. It is usually available ground, as a bright yellow, fine powder. In India it is used not only as a basic spice in curries, but also to tint many sweet dishes. The flavor is mild, and reminescent of a dull ginger. If using fresh turmeric, soak it in lemon juice or milk. If you want a stronger aroma, soak it in hot water.