Slow cooked duck legs with port & orange sauce

British Duck Legs 76.0% , port 22.0% , ORANGE SAUCE 22.0% , Cracked Black Pepper Sea Salt 0.0% , 4 PORT and ORANGE SAUCE contains Water Onions Chicken Stock 0.0% , ruby port 0.0% , Duck stock 0.0% , Concentrated Orange Juice Cornflour Unsalted Butter 0.0% , Rapeseed Oil Demerara Sugar Sugar Salt Roasted Garlic Purée Dried Porcini Mushrooms Concentrated Redcurrant Juice Orange Zest Thyme 0.0%