Take the shallots, garlic, fish sauce, soy sauce, salt and black pepper and mix well in a bowl.
Add the pork pieces and coat with the mixture.
Place the sugar in the Instant Pot and select saute.
Cook the sugar for about 10-15 minutes or until golden brown.
Add the pork belly pieces and saute for 5 minutes.
Cancel the saute and add the water.
Close the lid and cook on high pressure for 35 minutes.
When cooking time ends, wait for a natural release for 15 minutes.
Once done, do a quick pressure release and open the lid.
Add scallions on top, serve and enjoy :)
Notes
You can marinate the pork belly pieces in the shallow-soy sauce mixture ahead of time, up to a few hours in the refrigerator, to infuse extra flavor.
When you are cooking the sugar, be sure to stir constantly to avoid scorching. Once the color starts to turn, it will quickly turn from golden brown to black, so you’ll want to keep a close eye on it, so it doesn’t burn.