Cut the pork belly into 1-inch cubes, keeping the skin intact.
In a large bowl, mix salt, garlic powder, and black pepper.
Rub the spice mixture onto the pork cubes evenly.
Place the seasoned pork in a pot and cover it with water.
Bring to a boil, then reduce heat and simmer for 30 minutes.
Remove the pork and let it cool slightly.
Heat vegetable oil in a deep frying pan to 350°F (175°C).
Fry the pork belly pieces in batches until golden brown and crispy.
Drain on paper towels and season with additional salt if desired.
Serve hot as a snack or topping.