Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   4      halves        chicken breasts -- boneless, skinless
   2      teaspoons     vinegar
   2      cups          frying oil
   2      tablespoons   cornstarch
   2      tablespoons   ginger root -- minced
   2      tablespoons   soy sauce
     1/4  cup           chicken stock
   3                    scallions, white part only -- minced
   1      teaspoon      sesame oil
   1      tablespoon    garlic -- minced
     1/2  teaspoon      chili sauce - Tuong Ot Sriracha
   1      teaspoon      orange zest
   1      can           chicken stock
                        ***Marinade***
   2      medium        egg whites
   2      tablespoons   sugar
   2      tablespoons   cornstarch
     1/4  cup           soy sauce
     1/4  cup           Chinese cooking wine -- or dry sherry

Preparation:

Slice the chicken into pieces about 1 inch square. Prepare the marinade: Combine egg white, cornstarch, soy sauce and cooking wine in a large glass bowl. Add chicken pieces and mix thoroughly. Let chicken marinate for 2 hours in the refrigerator. Fry the chicken: Heat the oil in a deep pan until it reaches 350F. With tongs or a spider, add several marinated chicken pieces into the oil. Just fry a few pieces at a time. Fry about one or two minutes or until the chicken is golden. Remove chicken pieces to a plate with a layer of paper towels to drain off oil. Do no over cook as the chicken will be tough. Continue frying the chicken until all pieces have been fried. Set oil and cooked chicken pieces aside. Make the Sauce: In a deep bowl, combine the sugar, soy sauce, vinegar, chili sauce and cornstarch mixed with 3/4 of the can of chicken stock. Chowing: In a wok, over high heat, reheat two tablespoons of the reserved oil. Add ginger, scallions and garlic and chow for about one minute. Add the fried chicken and stir. Add the sauce and chow for several minutes until sauce begins to thicken. Add additional stock if sauce is too thick. Add the orange zest. Remove from the heat and stir sesame oil into the sauce. Serve on a heated plate over steamed rice.