Steps
1. In a bowl, mix soy sauce, rice wine, sugar, five-spice powder, minced garlic, and white pepper.
2. Add the chicken pieces to the marinade and mix well. Marinate for at least 30 minutes.
3. Heat oil in a deep pan or fryer to 180°C (350°F).
4. Coat the marinated chicken pieces evenly with sweet potato starch.
5. Fry the chicken pieces in batches until golden brown and crispy, about 4-5 minutes.
6. Remove and drain on paper towels. Sprinkle with salt and optional chili powder or fried garlic if desired.
7. Serve hot as a snack or appetizer.