Make the beef broth: quick boil the pork bones in 5 minutes. Pour 2 liters water into a big pot, add salt, fish sauce, 3 grilled onions, 1 carrot into. Boil with heat number 7 about 10 minutes. Remove all dirty bubbles. Then boil in medium heat number 4 in 2 hours. Grill 3 cinnamon sticks, 3 cardamoms, 5 anise flowers, 2 tablespoons of rock sugar & let them into the broth. Boil all mixed 1 hour more

Boil rice noodles in 2 minutes. Wash again with cold water

Set all the herbs (chopped coriander, onion, onion leaves), a little bit black pepper powder & sliced raw beef

Pour the hot soup into the bowl. Serve with a little bit lime juice