Tom Yum Goong (Hot And Sour Soup) 16 large shrimp 5 cup water 2 stems fresh lemon grass (bottom 1/3 ) 1 half-inch piece siamese ginger (galanga), 3 small hot red chilies seeds and removed 2 coriander roots 1 salt to taste 6 small fresh kaffir lime leaves 4 tablespoon nam pla (fish sauce) 5 tablespoon lemon juice 1 tablespoon lime juice 15 oz straw mushrooms drained 2 stems fresh coriander leaves, for garnish Note: Save shells from the shrimp, including heads, if available. Shell and devein shrimp, reserving heads and shells. Place shells and heads in a large saucepan. Add water, lemon grass and Siamese ginger. Using a mortar and pestle, pound two of the chilies with the coriander roots and add to pan. Add the salt and five of the lime leaves, shredded into little pieces. Bring the soup to a boil and simmer uncovered 20 to 25 minutes. Strain stock into a clean pan. A few minutes before serving, bring the stock to a boil, add the shrimp and cook 2 to 3 minutes. Add the nam pla, lemon and lime juices and the straw mushrooms. Adjust seasoning. The flavor should be tangy. Serve in bowls garnished with strips of remaining chili, shredded lime leaf and coriander leaves. Yield: 6