Exercise:
1, a cow with a big bone, let the store chop it directly with an axe. Blanch the bones first. When blanching, you can add a proper amount of cooking wine to remove the fishy smell.
2. Prepare auxiliary materials such as peppers and ginger slices. There is plenty of clear water here. Putting the blanched bones into the pot, adding all the auxiliary materials and a small amount of rice vinegar can precipitate calcium better. Then boil it with high fire, and then stew it for a few hours with medium or low fire. The longer it takes to cook, the more fragrant the soup will be.
3. After cooking for two hours, use a kitchen knife to remove the bone marrow inside the bone stick and the meat outside in the soup.
4. The yam is ready, washed and cut into pieces. Add a little water to another pot and cook the yam for about seven minutes.
5. Pour half the bone soup and continue to simmer until the yam is cooked.
6. Add the right amount of salt. You can cook. What a delicious soup, absolutely rich in nutrition!