Ingredients: 250g sea cucumber, 400g yam, 400g coelom, onion 1.
Accessories: salt, chicken powder and pepper.
Step 1: Wash and blanch the cavity bone.
Step 2: Peel the yam, cut it into pieces and soak it in water for later use.
Step 3: Cut the soaked sea cucumber into pieces for later use.
Step 4: Bring the cavity bone to a boil and simmer for 30 minutes.
Step 5: put the bone soup, yam and sea cucumber into an electric pressure cooker.
Step 6: Turn on the power of the electric pressure cooker and select the "porridge" function.
Step 7: After getting discouraged, add salt, chicken powder, pepper and chopped green onion to serve.