It is also a Taiwanese snack, or we can find something similar on the mainland. This use of pig blood will be better than duck blood, if you do not want to eat blood tofu and the like is also possible.
Hot oil sautéed peppers and peppers, pour the sauerkraut and put the salt and stir well until the oil is clear. After adding the sauerkraut, pour a bowl of broth. Generally, a bowl of sour soup is about 30 to 50 grams of sauerkraut. Boil for about 3 minutes, add the boiled duck blood and cook for one minute. Add a little leek and white pepper to the pan. Because all the sour taste comes from the sauerkraut, the sour taste of the vinegar is not so irritating and sour, but the taste bud is warm.