This classic Thai chicken soup is easy to prepare at home. Coconut milk and fresh lime juice give the soup it's signature creamy, tangy flavor.
Bring stock, coconut milk, mushrooms, shallots, lemongrass, ginger and red pepper in large saucepan. Reduce heat to medium-low; simmer 5 minutes.
Stir in chicken; simmer 5 minutes longer or until cooked through. Stir in lime juice and fish sauce. Remove lemongrass pieces.
Ladle into soup bowls. Serve with cilantro.