Coat chicken pieces in flour, then dip into beaten eggs, then coat with cornstarch.
Heat oil in a deep skillet over medium heat and fry chicken in batches until golden and crispy. Drain on paper towels.
In a separate pan, heat 1 tbsp oil and sauté garlic, ginger, and dried chilies for 30 seconds.
Add soy sauce, vinegar, hoisin sauce, sugar, sesame oil, and chicken broth. Stir well and bring to a simmer.
Stir in cornstarch slurry to thicken the sauce. Simmer for 1–2 minutes until glossy.
Add the fried chicken into the sauce and toss to coat evenly.
Garnish with green onions and sesame seeds. Serve with steamed rice.