Mix the salt, coriander, garlic flakes, ginger, mustard seeds and black pepper together. (Use a pestle and mortar or food processor, do not combine until powder like, only crack the seeds)
Rub the pork belly with the salt mixture
Slice Apples into wedges
Place the apple wedges on your oven tray
Drizzle with olive oil
Place the pork belly onto the apple wedges
Place a handful of fresh sage around the pork belly