Step1:Let the seller chop the pig leg bone into pieces in advance. Wash it. Put it into the boiling pot and blanch it. Take it out and wash it. Slice ginger. If it's scallion, cut it into pieces. Knot scallion. Cut corn and carrot into pieces.
Step2:Put some water in the casserole. Put in the bone and onion and ginger.
Step3:After boiling, skim off the froth, pour in some cooking wine and white vinegar, put in corn and simmer on medium and low heat. Stew for 1 hour. Put in carrots and continue to cook for 30 minutes. Then add some salt to taste.
Cooking tips:If someone is afraid of the loss of nutrients in the leg bones of pigs, you can use cold water to soak the bones for an hour first. Change the water several times in the middle and soak the blood out. But I think it's better to blanch. This time, it's mainly to remove blood and water from bones and kill parasites. There are skills in making delicious dishes.