Goosun Preserved Duck Egg, also known as century egg or "pi dan," is a traditional Chinese delicacy made by preserving duck eggs in a mixture of clay, ash, and salt for several weeks to months. This process transforms the egg, giving the yolk a creamy, dark green texture and the white a translucent, jelly-like consistency. The flavor is rich, with a savory umami taste and a slightly pungent aroma. Often enjoyed as a topping for congee, sliced into salads, or served with pickled ginger, Goosun Preserved Duck Eggs offer a unique and authentic flavor experience that is cherished in many Asian cuisines.