Take your chicken pieces and season them with salt and pepper.
Dip the chicken into the beaten egg, then coat each piece evenly with cornstarch or flour.
Set the chicken aside while heating oil in a wok or pan for frying.
Heat enough oil in your wok to shallow fry the chicken pieces.
Fry the chicken in small batches until golden brown and crispy.
Remove the fried pieces using a slotted spoon and place them on a paper towel to drain excess oil.
In a small bowl, whisk together soy sauce, rice vinegar, hoisin sauce, sugar, chicken broth, and sesame oil.
Heat a tablespoon of oil in the same wok and sauté garlic, ginger, and dried chilies until fragrant.
Pour in the sauce mixture and bring it to a simmer. Add the cornstarch slurry (cornstarch mixed with water) to thicken the sauce.
Add the fried chicken pieces to the sauce and toss to coat them evenly.
Cook for another 2–3 minutes, ensuring the chicken is well coated and heated through.
Transfer the finished dish to a serving plate.
Sprinkle with sliced green onions and sesame seeds for a professional touch.