Braised Chicken Drumsticks

• 8 chicken fryer drumsticks
• 1 five-spice bouquet
• 1 five-spice powder
• 950 ml water (cold)
• 700 ml oil for deep-frying
• 140 gr chestnuts (dried)
• 120 ml sherry
• 120 ml dark soy sauce
• 100 gr rock sugar
• 1 gr salt