Bangers and mash

potato 52.0% , pork sausage 20.0% , onion 11.0% , water 5.9% , butter 4.7% , roast beef stock 3.2% , corn flour 1.6% , tomato purée 0.8% , balsamic vinegar 0.4% , salt 0.2% , rapeseed oil 0.1% , pork gelatin 0.0% , vinegar 0.0% , D Sugar Syrup 0.0% , sunflower oil 0.0% , cracked black pepper 0.0% , sugar 0.0% , spice 0.0% , dehydrated onion 0.0% , tamarind 0.0% , garlic puree 0.0% , lemon oil 0.0% , pork collagen casings 0.0%