Kansi, or Cansi, is a traditional Visayan beef soup made from boiling cow shank. It is soured by the addition of batwan or binukaw.
source
Kansi – How to cook Authentic Bacolod Beef Shank Sour Soup

Kansi, or Cansi, is a traditional Visayan beef soup made from boiling cow shank. It is soured by the addition of batwan or binukaw.
source