Step1:The tendon was soaked in cold water to remove the blood. I had to change the water several times. I soaked it for about 4 hours.

Step2:In cold water, add scallion and ginger.

Step3:When the water is boiled, add half a spoon of vinegar. It's used for cooking at home.

Step4:Simmer for two hours.

Step5:Take a clean spoon and a spoon of old soup. It's the soup for cooking beef tendon.

Step6:Two scoops of raw soy sauce.

Step7:Boil it and put in the tendon.

Step8:Spoon the tendon with soup. Repeat.

Step9:It's already colored when the juice is about to be collected. Until the juice is collected.

Step10:Dish and wait for the slices to cool.
Cooking tips:You should always use a spoon to pour juice on the beef tendon when you use the sauce. Otherwise, the bottom should be pasted. There are skills in making delicious dishes.