The oven should be preheated to 400 degrees Fahrenheit.
Remove the pork belly marinated out of the fridge.
With a skewer or sharp knife or thermometer, poke holes in the skin without getting deep into the fat layer. If you do go through the fat layer could result in the fat releasing water onto the skin which causes your skin to lose its crisp, bubbly texture that this dish is renowned for.
Select a roasting pan that will accommodate the whole inside the pork belly. Form an aluminum foil rectangular box around the meat. It should be high enough to support an even layer of salt. The aluminum foil box should be placed on the pan for roasting. Put the pork belly in the foil aluminum box.
Dry the skin again with a tissue. Apply lime juice over the skin and rub it into.
Cover the pork's skin with an ointment of sea salt. This allows the moisture and heat to be held in the crust of salt. It also has the benefit of lessening the odor of pork that usually is a part of the home by eating this dish.
Bake it. For three pounds of pork belly usually, it roasts for around one hour.
After about an hour, take the tray of pork from the oven. Scrape off the salt that has accumulated on the top and dispose of it together alongside the foil of aluminum.
Cover the roasting tray with new aluminum foil to catch drips of fat. Repeat the process.
In the sam roasting pan, place racks. Place your pork bellies on the rack and top it together with it on the tray for roasting.
Put the dish in the oven on bottom of the rack. Then, switch the oven's temperature to broil and then heat to cook for an additional 15 minutes.
The skin should begin crackling and create evenly sized bubbles in it's skin. If you notice areas of the skin getting burned or becoming crispier than others You can sprinkle aluminum foil and continue broiling on the belly of pork until it's uniformly crisp.
The meat is ready once the juices have gone through it after you poke it.
Take out of oven and let the oven cool down for about 15 mins.
Remove any burned areas on the face.
Cut into bite-sized pieces, each one with meat and skin.