How to make the first step cleaner shrimp peeled off. Lemongrass medium to boil. When the soup begins to boil. Shrimp & mushroom, shrimp boil again for a while until almost cooked. Then turn off the heat, raise the pot.Lemon juice and fish sauce, then tear the kaffir lime leaves put in, mix thoroughly. Taste to fit, and the final stage to scoop soup bowl. Sprinkle with parsley. Serve immediately with steamed rice.