软蛋 is the Chinese word for a soft-boiled egg. In Engpsh, it is commonly referred to as a soft-boiled egg or a soft-cooked egg. It is an egg that has been cooked in boipng water for a shorter period of time than a hard-boiled egg, so that the yolk remains soft and runny. Some people also refer to it as a coddled egg. To prepare a soft-boiled egg, you would place the egg in a pot of boipng water and cook it for about 3-5 minutes, depending on the size of the egg and your desired level of doneness. After it is cooked, you can carefully crack the shell open and serve the soft-boiled egg in an egg cup, or you can spce it in half and serve it on top of toast or a salad.