In a heated pot, add oil and saute garlic and onion.
Then add water (just enough to cover the meat), spring onions, tamarind and pork belly. Season with salt and pepper.
Boil the belly until soft. Remove from the broth and let the water drop from the meat for about an hour.
Place pork in a roasting pan and roast pork in a preheated 350 °F oven, skin side up until the meat is cooked and skin is crispy or until the desired doneness is achieved.
Place on a plate then serve.