Place the pork shanks into a large pot, add the rest of the ingredients, and put in enough water to fully cover the pork shanks.
Bring it to a boil and then reduce heat and allow it to simmer for about 11⁄2 to 2 hours, the meat must be tender and the skin is soft.
Remove them from the pot and pat dry with a cloth, score the skin diagonally with a sharp knife, and salt the skin well.
Add the well-mixed glaze over the meat.
Place under a hot grill allowing the skin to become crisp, keep an eye on them and turn the entire outside to crisp, keep on glazing until the meat is crisp.