
In a pot, combine pork shoulder, calamansi juice, soy sauce, water, brown sugar, and pepper. Stir to distribute. Cover with the lid and bring to a boil. Occasionally skim the scum that floats on top.
Lower heat and simmer for about 40 to 60 minutes until tender. Drain pork well and reserve the cooking liquid.
In a wide pan over medium heat, heat oil. Add onions and garlic and cook until softened.
Add pork and cook until lightly browned. Add reserved liquid and all-purpose cream. Stir to distribute.
Add salt and pepper to taste. Simmer until heated through and slightly thickened.