This Thai soup recipe comes from the wife of country doctor I once knew in Southern Thailand. She had the good fortune to have a shrimp-farming relative living nearby. This simple spicy, fragrant lemongrass soup cooks in one pot in less than 30 minutes. Tom Yum is the classic spicy and sour soup from Thailand and is served with jasmine rice and one or two other dishes as part of a Thai family meal. The Thai word talay or taleh means 'sea' and of course refers to the mixed seafood in the soup. Note you can use any combination of seafood, including mussels as pictured.