Cooking Steps

1. 

   Step1:Defrost the tail one day in advance. Soak in cold water. Remove the blood. Then start to wash the tail of the cow. Put the cold water in the pot over it. Pour in the cooking wine. Boil it. Skim the floating powde

2. 

   Step2:Take out the cow's tail. Wash it with hot water. Cut the ginger and scallion into large sections. It's ready to be put into the oil pot

3. 

   Step3:Oil 7 mature. Add ginger and scallion. Stir fry and put in the tail of the cow. Turn over in the pot

4. 

   Step4:Put it in warm water. Put it all at once. Don't add it later. Boil it over high heat. Simmer it over low heat for about 2 hours

5. 

   Step5:Cut potatoes and tomatoes with a hob. Soak potatoes in water. Prevent discoloration. Spit starch

6. 

   Step6:About 2 hours. The soup in the pot has begun to collect. Put in tomatoes and potatoes. Bring to a boil over high heat. Simmer for half an hour under low heat

7. 

   Step7:Stewed potatoes are glutinous and glutinous. (it depends on your taste of potatoes). It's time to start seasoning. Add salt, chicken essence, sprinkle with scallion, a little white pepper, and a drop of sesame oil when you leave the pot