If you haven't cooked beef ... feet and pig trotters become tender after a lengthy simmer. Beef tendon can have a strong beefy aroma, veering on gamey, which can deter people from cooking it.
Bring to a simmer and cook until the sugar is dissolved. Put all the pieces of pig's feet into the pot and bring to the boil. Cover with the lid, turn down the heat and cook at a low simmer ...