The secret of this delicious, easy to prepare and inexpensive dish lies in the use of preserved vegetables, which are typical of northern Chinese cuisine. In the north, people must preserve vegetables by salting or pickling, since the winters are long and cold. If you like your dish a bit spicier, like me, use Sichuan preserved vegetables.
For the garnish:
Reprinted from Complete Chinese Cookbook by Ken Hom. Copyright © Firefly Books 2011. Food photography by Jean Cazals copyright © Woodlands Books 2011. Reprinted with permission.
Simple table salt can be transformative on food -- imagine unsalted potato chips or french fries. Paul Breslin, a professor who researches taste perception, explains how salt affects the taste of food.