A variety of dan hua tang (lit. egg flower soup), the nourishing tomato and egg soup is a classic Chinese comfort dish. It is made with coarsely chopped tomatoes and green onions simmered in a flavorful pork broth, while eggs are stirred into it towards the end of cooking.

Tomato and egg soup is often flavored with Chinese pickled mustard greens called zha cai or fish sauce, both of which add saltiness and a good deal of tang to each spoonful. This light, refreshing soup is typically served after a meal, especially a heavy, greasy one, and it tastes just as good hot or cold.