1. Peel potatoes, cut them into chips the size of little fingers, wash and drain.
2. Take the cabbage head, tear it into pieces by hand, and shred the onion for later use.
3. Put the oil in the pot. When the oil is hot, add the shredded onion and stir-fry until it is slightly yellow. Remove the dried onion.
4. Add potato chips and stir-fry until the potatoes change color and become soft.
5. Add unheated hot water, boil and simmer until the soup thickens.
6. Add cabbage leaves and continue to stew until the cabbage and potatoes are soft and rotten.
7. Add the right amount of salt and monosodium glutamate, and take out the pot.