Bring chicken broth and water to the boil. Add garlic, spinach, preserved duck egg and salted egg yolk. Boil for about 15 to 20 minutes. Stir in salted egg white. Serve.

• 清鸡汤加入清水煮滚，加入蒜头、菠菜、皮蛋及咸蛋黄，滚约15至20分钟，注入咸蛋蛋白，下盐调味，即可饮用。