1Cut the chicken fillet on a cutting board and transfer it to a bowl.
2Season the chicken with salt and black pepper, add one tablespoon of soy sauce, one tablespoon of apple vinegar, two tablespoons of cornstarch, and one egg white, then mix well.
3Marinate the chicken for 15 minutes.
4Heat oil in a frying pan, add the chicken fillets, and fry both sides until browned.
5In a separate bowl, mix five tablespoons of soy sauce, one tablespoon of apple vinegar, one teaspoon of sesame seeds, two tablespoons of honey, and one teaspoon of sesame oil.
6Add the sauce to the pan with the chicken, stir, and fry for one minute.