How To make Oyster Sauce Chicken (Ho Yow Gei)

2 lb Fryer cut in pieces
3/4 c Oyster flavored sauce
4 T Soy sauce
2 Cloves garlic sliced
1 Small fresh ginger chopped
1 c Chicken stock
Combine all ingredients and mix thouroughly. Add chicken to sauce and marinade for 3 hours or more. Remove chicken pieces and place under broiler for 25 minutes each side, brushing chicken with sauce to keep moist. Serve with rice.