At 110°C (230°F), this takes about four hours for rib racks that weigh 500g (18oz). If you like the meat to be softer, cook them longer. If you have the choice between baby back ribs and spare ...

Preheat the slow cooker to low. Slice each rib rack in half and set aside. In a large bowl, combine the ginger, garlic, spring onion whites, half the chilli, the soy sauce, miso paste and sesame oil.