Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   4                    chicken-breast halves -- skinned, boned, and
     3/4  in            cubes
   1                    egg white
   1      tablespoon    corn starch
   2      tablespoons   vegetable oil
   1      cup           unsalted peanuts or cashews
   2                    scallions -- sliced
   2      tablespoons   dry sherry
   2      tablespoons   hoisin sauce
   4      tablespoons   black bean sauce
     1/4  teaspoon      chili paste -- up to 1/2
   1      tablespoon    vinegar
   1      teaspoon      sugar

Preparation:

Combine the cubed chicken with the egg white and cornstarch. Refrigerate for 1/2 hour. Heat oil in wok and stir-fry chicken 3 to 4 minutes, until done. Add nuts, scallions, and remaining ingredients. Heat thoroughly and serve at once with rice.