Cut Chicken breast and/or boneless thigh into ~ 1 to 2 inch cubes. In a plastic bag, marinate chicken (~2lb) with sugar (1T), rice wine (2T), soy sauce (3T), five-spice powder (0.5t), white pepper powder (0.5t), and garlic powder (optional) for 30 min. Coat chicken with sweet potato (yam) flour. Tapioca flour works also. Fried chicken in oil over medium heat for 3 ~ 5 min, high heat for 30s to 1 min.