"I've tried a handful of other methods over the years. This has produced the juiciest turkey breast by far, plus slow cooking generally is very forgiving so you don't need to be spot on with the cooking time. The skin probably won't come out crispy straight out of the slow cooker (I think that's scientifically impossible!) but it only takes a few minutes under the grill/broiler to crisp up. The juices that pool in the slow cooker has extra flavour from the garlic and onion so it makes a fantastic gravy...."