In a bowl, mix chicken with salt, pepper, egg, flour, and cornstarch until evenly coated.
Deep-fry or air-fry chicken pieces until golden and crispy. Drain on paper towels.
In a pan, add a little oil. Sauté garlic and ginger until aromatic.
Stir in orange juice, soy sauce, vinegar, sugar/honey, and a bit of orange zest. Let it simmer.
Add cornstarch slurry and cook until the sauce thickens and becomes glossy.
Add crispy chicken to the pan and coat well with the orange sauce.
Sprinkle sesame seeds and chopped spring onions. Serve hot with steamed rice or noodles.