Lightly season the coconut flour and toss with the beef and set aside.
Heat half of the oil in a large frying pan over medium heat. Add the onion and cook while stirring for 5 minutes or until browned and softened.Transfer to slow cooker. Heat the rest of the oil over medium-high heat and cook the beef in batches for 4-5 minutes or until browned.Add the paprika and tomato paste and cook for a minute, stirring to coat the beef.Add the stock, bring to a simmer then transfer to the slow cooker. Cook on high for 4 hours.
season to taste and serve garnished with chopped parsley.