Method: Preheat the oven to 240C/220C (fan)/Gas 9 Dry the pork belly skin with kitchen paper. Mix a some thyme, salt & pepper in a bowl. Rub this mix all over the pork and skin. Place the pork on a baking tray and roast for 25-30 mins until the skin is crisp then reduce to 180C/150C (fan)/Gas 4 and cook for another hour. Mix the apples and onions, sprig of sage and a little black pepper and arrange in the middle of a small roasting tin. Remove the pork from the oven and place it on top of the apple & onion mix, covering the mix so it doesn’t burn. Return pork to the oven and roast for another hour.