A Century Egg, also known as a hundred-year egg, is a traditional Chinese delicacy made by preserving duck, chicken, or quail eggs in a mixture of clay, ash, and quicklime. The preservation process can take several weeks to months, resulting in a dark green or black egg with a creamy yolk. The flavor is often described as rich and savory, with a unique aroma. Century eggs are commonly served as a side dish or ingredient in various dishes, such as congee or salads. They are popular in Chinese cuisine and are enjoyed for their distinctive taste and texture.