Cooking Steps

1. 

   Step1:Wash yam, peel off, and cut into hobs for later use. Cut carrots into hobs as well.

2. 

   Step2:Put half a pot of water. Put in the cleaned spareribs and boil them in a big fire. At this time, there will be a layer of foam on the soup surface. This is the boiled blood water. Turn off the fire. Remove the ribs and wash them.

3. 

   Step3:Put some water in the casserole to boil (enough water at a time. No more water in the middle of the pot). Put the spareribs together with ginger, cooking wine and star anise. Turn the heat to a low one. At this time, add a few drops of white vinegar. It can not only make the calcium in the ribs dissolve into the soup, but also make the soup taste more delicious. Don't add too much vinegar, or the ribs will taste bad. Boil for an hour. Add yam and carrot. Cook for another hour. Season with medlar and salt.