Gai Tom Kha (Thai Chicken And Coconut Milk Soup) Serves 6 to 8. Amount Measure Ingredient -- Preparation Method -------- ------------ -------------------------------- 4 cups medium coconut milk 1 1/2 cups chicken stock 3 quarts pieces dried galangal -- (kha), or 6 quarts pieces fresh galangal 4 stalks fresh lemon grass -- bruised, cut into 2" 6 fresh serrano chiles -- sliced into rounds 1 large whole chicken breast * 4 tablespoons fish sauce -- (nam pla) 5 fresh kaffir lime leaves -- or 1 tbs.. lime zest 2 fresh limes -- juice 2 tablespoons chopped coriander leaves * cut into 1/2-inch pieces (with or without bones, see note). Combine coconut milk, chicken stock, galangal, lemon grass and 4 of the chiles in a saucepan; bring to a boil. Reduce heat and simmer for 20 minutes. Strain stock; discard galangal and lemon grass. Return stock to a boil, add chicken and simmer until tender, about 2 minutes. Add fish sauce, citrus leaves and remaining chiles. Stir in the lime juice. Garnish with coriander. NOTE: I like to use boned chicken breast if I'm cooking for guests. For the best flavor, however, use a whole small chicken chopped into small pieces with the bones; increase the cooking time until chicken is tender.