Cream of Beancurd Spinach Soup

Serving food on airlines is perhaps one of the most challenging tasks in the food service business. This is especially the case on long-haul flights, in which several meals are served. Research shows that the passenger is better off with light foods as heavier meals are difficult to digest at higher altitudes. Asian airlines are especially good at meeting this challenge, by offering satisfying soups. Here is a brilliantly conceived soup that I enjoyed on a Singapore Airlines flight; it is a