Caramelised res onion

red onion 55.0% , sugar 24.5% , glucose syrup 10.2% , wine vinegar 5.1% , corn starch 2.6% , cider vinegar 1.3% , salt 0.6% , lemon juice concentrate black pepper 0.3% , red bell pepper 0.2% , mustard seed 0.1% , ginger powder 0.0% , Colour 0.0%