1. Put water in the pot, add chicken wings, 3 slices of ginger, half a scallion and a spoonful of cooking wine and bring to a boil. After boiling, use a spoon to remove the floating foam, and cook for 2-3 minutes to stop the fire.
2. Remove the chicken wings and put them on the kitchen paper to wipe off the moisture.
3. Put oil in the wok, add chicken wings and fry for a while.
4. The chicken wings change color on both sides, and add the remaining ginger slices, dried peppers and star anise.
5. After the seasoning is fragrant, add cola, and the amount of cola should not exceed the chicken wings. Add soy sauce.
6. Bring the fire to a boil and add a small amount of salt. Simmer until the soup is thick, then turn off the heat and take out the pot.