Slow-cooked five-spice pork belly with three-cheese polenta

By Andi Oliver From Saturday Kitchen Ingredients 2 onions, thickly sliced 4 garlic cloves 2 bay leaves 4 whole cloves ¼ star anise 10 whole green cardamom pods 1 cinnamon stick 1 tsp coriander seeds 500g/1lb 2oz pork belly, skin removed and reserved 200ml/7fl oz cider knob of butter 2 tbsp balsamic …