
Place the pork spine bones in a pressure cooker with the water, pork stock cube, light soy sauce, and 1 tbsp fish sauce. Cook on high pressure for 10 minutes, then let the pressure release naturally for 10 minutes. Open the lid carefully and skim off any foam or impurities from the surface.

Add the chopped onion, 6 smashed garlic cloves, and cracked white peppercorns. Cook on high pressure for 45 minutes, then let the pressure release naturally for 10 minutes. Transfer the bones to a large serving bowl and strain the broth, discarding the onion and garlic solids.


Return the strained broth to the pot and bring it to a gentle simmer using the saute function or the stovetop. Stir in the lime juice, remaining fish sauce, sugar, chopped garlic, Thai bird chilies, coriander, and spring onions. Taste and adjust the seasoning, then pour the hot broth over the bones and serve immediately with jasmine rice if desired.


