Cut the chicken breast into thin slices about 5 cm long, cutting against the grain.
Place chicken into a bowl with the soy sauce, rice wine or sherry, ginger, cornstarch and 1 teaspoon sesame oil. Mix well, and then let the mixture marinate for about 20 minutes.
Heat the oil in a wok or large skillet until it is very hot. Remove the chicken from the marinade with a slotted spoon.
Add it to the pan and stir-fry it for 2 minutes until it browns. Remove and leave to drain in a colander or sieve. Pour off most of the oil, leaving about 2 teaspoons.
Reheat the pan over a high heat and then add the dried chiles. Stir-fry them for 10 seconds, and then return the chicken to the pan.
Add the rest of the ingredients and stir-fry for 4 minutes, mixing well.
Serve the dish at once.