Boiled tube bones and then washed to remove all dirt. Simmer the bones for about 1 hour and then drain 1 liter of broth to make soup.
Crab washed, boiled. Then remove the crab meat.
Put a pan on the stove, hot pan add a little oil and fry the crab meat until fragrant.
Wash corn, peas, string smell. Beat egg whites, mix tapioca flour with enough water.
Put the pot of broth on the stove, add the corn kernels and peas to cook. When the corn and beans are soft, add the crab, season to taste.
Next, slowly pour in the egg whites and stir in one direction to create a beautiful pattern.
Finally, add the tapioca starch, pay attention to pour it slowly, until the soup is thickened, then stop. Do not pour at once, it will be too thick. Cook until the soup turns clear, then scoop out into a cup, sprinkle with coriander, add pepper powder, chili as you like and enjoy.