Set the pot, put the soup into hot lemon with pressure until the shallots, garlic, galangal put into boiling water to boil again, reduce the fire down, left about 15 minutes medium cooked further.
Set the pot of soup to heat until hot, add lemon grass, galangal, shallots and garlic to a boil enough water boils again, lower the heat to medium and boil for about 15 minutes.
Put the pot with broth with high heat until hot add lemongrass, galangal, shallot, garlic, boiled down once the water boil again, reduce the heat remaining medium boil about 15 minutes