Nutmeg is a SPICE that has been used for centuries in cooking and medicine. It is the seed of an evergreen tree native to Indonesia, and is usually sold ground or grated. The term nutmeg can also refer to the outer covering of the seed, which is known as MACE. MACE has a slightly different flavor than nutmeg, but is often used in the same dishes. Both nutmeg and MACE are popular spices in many cuisines around the world.