Wash walnuts, put them into a blender and break them, then add them into the rice paste for later consumption. The main function of walnut kernel is to tonify kidney and replenish essence. After the baby eats walnut kernel, it can play a role in strengthening the brain, improving intelligence and relaxing bowels. Walnut kernel is rich in vitamins such as protein, calcium, phosphorus, etc., which can supplement the nutrition needed by the baby and is beneficial to the normal development of the baby. After the baby is 67 months old, walnut kernel can be made into complementary food for the baby.