Yam and Corn Bone Soup
1.
Soak the spine for one hour to remove blood water, pot under cold water
2.
Peel the yam and cut into hob pieces, cut corn into sections, green onions into sections, and ginger slices
3.
Put them in a casserole, bring to a boil on high heat, and simmer on low heat for half an hour
4.
Turn off the heat and sprinkle in coriander or goji berries