Boil the water in the pot, then add the river flour. When the river flour is cooked, take it out and put it in a bowl for later use.

2.

Scaled bean sprouts in a bowl.

3.

Boil hot water in the pot and add the fat beef roll. After the fat beef is cooked, put it on the rice noodles.

4.

Cut the pepper into small pieces and add the broth to boil.

5.

Slice the lemon, squeeze some lemon juice in a bowl and add the broth.