Rub the pork belly thoroughly, first with salt and then with the spice mix, working it into every side.
Place the pork belly in a container - whole or cut into smaller pieces. Cover with a lid and leave for a day at room temperature.
Then move the container to the fridge for another day.
Drain off any liquid that has collected, wipe out the container, and blot the pieces with paper towels to remove excess moisture.
Return the pork belly to the container and store in the fridge. It's ready to eat. Enjoy!