1. Wash the oranges first, and then cut a small piece with a knife, just where the pulp can be exposed.
2. Then sprinkle a little salt on the pulp and poke the pulp with a toothpick to let the salt penetrate into the pulp.
3. Then cover the freshly cut orange peel and fix it with two toothpicks to become an orange that looks uncut.
4. put it in a container and put it in a pot. After the water boils, turn to low heat and cook for about 20 minutes.