As in every cuisine, eggs are the great standby. Most Chinese households raise a few chickens and perhaps some ducks or geese. The bonus, of course, is the eggs-a valuable source of food for the family. Eggs are added to soups and stir-fried dishes for extra substance and nutrition, and omelets of every description abound from region to region. The following dish is one that would grace many family tables in South China, the shrimp (prawns) and the separate sauce marking the dish for special occasions.