Beef Brisket with Red Wine Jus

potato 31.0% , british beef 16.0% , savoy cabbage 13.0% , kale 13.0% , red wine 12.0% , onion 0.9% , water 0.9% , rapeseed oil 0.9% , beef broth 0.9% , Comflour 0.9% , butter 0.9% , Roast Garlic Purée 0.9% , tomato purée 0.9% , yeast extract powder 0.9% , red wine vinegar 0.7% , demerara sugar 0.7% , thyme 0.7% , lemon zest 0.6% , salt 0.6% , rosemary 0.6% , sugar 0.6% , black pepper 0.6%