[2] It is made of fried pepper, sour bamboo shoots, black beans, garlic, pork, soup and rice noodles.
[3] In the 1930s, an old man in Nanning used to visit a tea house every day.
When the tea house owner heard about it, he prepared a bowl of hot noodles for the old man with pickled bamboo shoots, chili, fermented soya beans, and crushed garlic.
The sour and spicy noodles helped the old man recover fast.
The old man was grateful to the tea house owner and later sent him a plaque reading "old friend frequent."