First, you add and boil water in a pot. Next, you peel the shrimp, cut lemongrass into piece 5-6 inches long and add the lemongrass in water and boil for 5 minutes.Then, you put the fish sauce, lemon juice, red chili , kaffir lime and mushroom into the pot.
Finally, you make it to combine and serve in a bowl and put coriander on a top.