For the pork:
Preheat the oven to 300 degrees F.
In a large pot or roasting pan, stir to combine the fish sauce, chili sauce, sugar, mirin
, sriracha and chili paste. Add the pork to the pan. Bake, turning after 1 hour, until the pork is tender and fully cooked, about 2 hours. Transfer the pork belly to a cutting board to cool completely; dice
into large chunks. Reserve the pork.