Place 5kg gammon in a large pot with 1 onion, 2 carrots, 5 garlic cloves, 2 sticks celery, 4 bay leaves, 3 star anise, 5 cloves, 2 oranges, peppercorns, and salt
Cover with water and cook for 40 minutes per kilogram
Cook until internal temperature reaches 50-55 degrees using a probe thermometer
Mix together 300g honey, 80g whole grain mustard, 50g american mustard, 100g brown sugar, and 40g balsamic vinegar glaze
Add a splash of water or ham stock to loosen the glaze mixture
Apply glaze to the cooked ham
