01 - Combine chicken with soy sauce, rice wine, egg white, and cornstarch in a bowl. Mix thoroughly until each piece is coated and let marinate for 15 minutes to tenderize and flavor the meat.
02 - Pour vegetable oil into a deep pan or wok and heat to 350°F. The oil should be deep enough to submerge chicken pieces completely.
03 - Dredge each marinated chicken piece in the additional cornstarch, pressing gently to ensure an even, thick coating that will create a crispy exterior.
04 - Deep-fry chicken in batches, being careful not to overcrowd the pan. Cook for 4-5 minutes per batch until golden brown and crispy. Transfer to paper towels to drain excess oil.
05 - Discard all but 1 tbsp of frying oil from the pan. Add garlic, ginger, and chili. Sauté quickly for 30 seconds until fragrant, taking care not to burn the garlic.
06 - Whisk together orange juice, soy sauce, sugar, rice vinegar, hoisin sauce, and orange zest in a bowl. Pour the mixture into the pan with aromatics and bring to a gentle simmer.
07 - Stir in the cornstarch slurry and continue cooking for 1-2 minutes, stirring constantly, until the sauce thickens to a glossy coating consistency.
08 - Add the crispy fried chicken to the sauce, tossing gently to coat each piece evenly. Serve immediately while hot, garnished generously with sliced green onions and toasted sesame seeds.