1 onion, finely chopped
5 garlic cloves, crushed
5 cm-piece ginger, peeled, grated
2 tsp chilli powder
1 tsp ground turmeric
1 tsp paprika
100 ml peanut oil
2 tbsp tomato paste
1 kg boneless pork belly, skin removed, diced
1 lemongrass stalk, bruised
100 g (⅓ cup) tamarind pulp concentrate
1 tbsp fish sauce
3 tsp caster sugar steamed white rice, to serve