01 - Combine chicken pieces with soy sauce, rice wine, egg white, and cornstarch in a bowl. Mix thoroughly to coat and let marinate for 15 minutes at room temperature.
02 - Pour vegetable oil into a deep pan or wok and heat to 350°F.
03 - Dredge marinated chicken pieces in additional cornstarch until completely coated, shaking off excess.
04 - Deep-fry chicken in batches, maintaining oil temperature, until golden brown and crispy, approximately 4-5 minutes per batch. Transfer to paper towels to drain excess oil.
05 - Remove all but 1 tablespoon of oil from the pan. Add garlic, ginger, and chili; sauté until fragrant, about 30 seconds.
06 - Whisk together orange juice, soy sauce, sugar, rice vinegar, hoisin sauce, and orange zest in a bowl.
07 - Pour sauce mixture into the pan with aromatics and bring to a simmer. Stir in cornstarch slurry and cook until sauce thickens, 1-2 minutes.
08 - Add fried chicken to the sauce and toss gently to coat evenly. Serve immediately garnished with green onions and sesame seeds.