Mix together the chopped spring onions, dark soy sauce and brown sugar and pour over the pork belly slices. Marinade for at least four hours or ideally overnight.
Combine the dressing ingredients and set to one side.
Preheat a cast iron pan in Roccbox before removing and placing the pork belly in the pan. Turn the flame down to its lowest setting and cook the pork in Roccbox for 6-7 minutes, turning regularly until it’s slightly charred and golden brown.
Meanwhile cook the rice vermicelli noodles according to their instructions.
Once the meat is cooked, chop into small bite size chunks and assemble the noodles, vegetables and herbs. Place some chunks of the pork on top and drizzle with dressing. Finish with a sprinkling of chopped nuts.