Cut the kale into four pieces and remove the hard core. Cut the rest into strips.
Heat the coconut oil in a frying pan and slowly fry the onion rings until they are soft and glazed. Add the balsamic vinegar and fry a little more.
Heat some coconut oil in another frying pan and fry the bacon until brown and crispy. Add the kale strips and cook until soft and wilted. Sprinkle with the sultanas.
Serve the kale with the onion. Delicious with boiled sweet potatoes, roasted potatoes or roasted jerusalem artichokes