Chinese Chicken Stock

1 (4 lb) chicken 1 bunch green onion , halved 4 cloves garlic , smashed 3 inches fresh ginger , whacked open with the flat side of a knife 1 onion , halved 1[...]

5 lbs chicken backs (or both) or 5 lbs chicken necks (or both) 2 slices fresh ginger , each the size of a 25 cent piece 2 chinese preserved turnip or 2[...]

16 cups chicken stock (homemade or store-bought) 2 lbs chicken parts (necks, backs, breast bones, wings, etc.) 6 green onions , sliced 2 garlic cloves ,[...]