roast chicken carcass, meat removed, • onion, outer skin removed, • celery, chopped into 3rds, • carrot, sliced into two, • spring onions, cut into halves, • fresh ginger, sliced into 3, • chicken stock cube, (I used the liquid gel kind), • fish sauce, • dark soy sauce, • Sichuan pepper corns (use black if you don't have), • Chinese 5 spice, • white pepper, •