to 2.5 qt of water add 2 lbs of cubed pork leg, 3 stalks of scallion, 1 tsp garlic paste, 1/2 tsp grated ginger, 1/2 tsp sugar, kosher salt and white pepper to taste, bring to a simmer, skim the foam from the top regulary until the meat is tender, about 2 to 2,5 hours