How to cook pork liver to be delicious and tender

Boiled pork liver is delicious and tender, such as:

After cleaning fresh pig liver, soak it in clear water for one hour to make it white. Pour cold water into the pot and add onion, ginger, star anise, cinnamon, dried Chili and pork liver. After boiling water on high fire, pour in a little cooking wine, turn to medium heat and cook for 5- 10 minutes, and poke holes in the pig liver with chopsticks. At this time, there will be a little blood. Turn to low heat and cook 10-20 minutes. Turn off the fire and stew for another half an hour. Take it out to cool.