Combine all ingredients for sauce such as: Minced zest, orange juice, sugar, chicken stock, light soy sauce in a small bowl and set aside
Cut chicken pieces in 2" squares and place in large bowl
Stir in egg, salt, pepper, and 1 tbs. oil and mix well
Stir cornstarch and flour together. Add chicken pieces, stirring to coat
Heat oil for deep-frying in a wok or deep-fryer to 375 degree. Add chicken pieces, a small batch at time, and fry 3 to 4 minutes or until golden and crisp.
Remove chicken from oil with slotted spoon and drain on paper towels. Set aside
Clean wok and heat 15 seconds over high heat. Add 1 tbs. oil. Add ginger and garlic and stir-fry until fragrant
Add and stir-fry crushed chiles and green onions
Add rice wine and stir 3 seconds
Add Orange Sauce and bring to boil
Add cooked chicken, stirring until well mixed
Stir water into remaining 1 tbs. cornstarch until smooth. Add to chicken and heat until sauce is thick
