First, cover the meat with coarse salt and leave in the fridge for 1 hour.
Cut up the carrots, onion and garlic. Put all of them in a pan with a few pieces of fresh thyme and cover with water.
After an hour, the meat is well seasoned and you can clean off the remaining salt. If you do not clean it off, the meat will be over salty.
Put the pork belly on top of the vegetables, cover and put in the oven for 4 hours at 140 °C/ 284 ℉.
After 4 hours, take the vegetables and meat out of the oven. Reduce the juices, remove the vegetables and retain the juices for the sauce.
Finally, press the pork belly and leave it in the fridge to set.
After sitting in the fridge, the belly is nicely chilled and you can cut it into nice pieces.
On a medium heat, fry the meat on the skin, until it is nice and crispy. Then, roast all the sides as well.