Cow bones are generally big and hard. When you buy it in the vegetable market, please chop it into small pieces, wash it at home and cook it in a cold water pot (like a rusty steel pot, which runs fast). When the water comes to the surface, the blood foam will be skimmed (it will take three or four times to skim the blood foam).
Pour the bone soup into an electric casserole, add a small piece of ginger (pat it a few times on the side with a knife), two onions (knead it into two rows by hand) and a few pieces of pepper to open a soup stall, and drop a few drops of vinegar (to make the calcium in the bone easier to dissolve into the soup). Stew directly from noon and get off work in the afternoon.
Stewed radish with beef bone soup is delicious. Put the radish directly in the beef bone soup, scoop some soup in the pot, and put it in a large radish and cook for 20 minutes.
Note: the water in the beef bone stew pot should be added at one time, and no water can be added in the middle; Put a little salt when stewing, add some salt when eating, and put it in the soup basin to satisfy your appetite. (Don't put monosodium glutamate, it will affect the original taste)