Sauce Instructions: Combine sauce ingredients and boil without cornstarch slurry until sauce is translucent then add slurry to thicken sauce. Sauce should return to somewhat translucent eventually
Heat 4 cups vegetable oil to 375 degrees in a deep fryer or pot of oil.
Beat the egg in a mixing bowl (you will be tempted to use more egg but don't). Add the chicken cubes, sprinkle with salt, 1 teaspoon sugar and pepper, mix well. Mix in 1 cup of cornstarch a little bit at a time until the chicken cubes are well coated.
In 2 separate batches, carefully drop the chicken cubes into the hot oil one by one. Cook until they turn light-golden brown and begin to float for about 3 minutes. Remove the chicken and allow to cool as you fry the next batch. Once all the chicken has been fried, re-fry the chicken. Cook until deep golden brown about 5-10 minutes.
Add sauce to fried chicken and reheat if needed in a skillet. Plate and garnish with sesame seeds. Usually served with rice and steamed broccoli.
Note: the sauce can also be put on a traditional stir fry of cooked vegetables and browned chicken.