Wash the cabbage and mustard green, blanch it in hot water, then let it cool off.
Once the veggies are cooled off, all into a food processor together with the stock and blend it into a juice.
Filter out the leftover juice pulp.
Heat up the juice before serving.
Notes
Cabbage is rich in glucose, vitamin A, vitamin B, vitamin C, vitamin K and vitamin U. For babies with weak stomach, cabbage has a function of conditioning the stomach and intestines. While for babies who have poor bowel movements or are prone to constipation, it is advised to consumed cabbage regularly.