Turn on the slow cooker. Season the beef with salt and pepper, mix well. Heat the oil in a medium heat frying pan and add the beef in. Cook until deep brown, then transfer to the slow cooker. Add the onion, mushroom, garlic into slow cooker. Add about 1-2 tbsp of water if prefer

Break up the stock cube and add into slow cooker, then add dijon mustard, oyster sauce, miso paste, tomato purée. Add enough water to just cover the beef, mix well, put the lid on and cook on Low for 6-8 hrs or High for 5-6 hrs.

About 30 mins before serving, melt the butter in a frying pan on low heat and add soured cream or Crème fraîche in. Slowly mix it and bring to a simmer. Heat off and pour into the slow cooker. Turn to High and cook for another 15 mins. Serve with your rice, potatoes, pasta or chips, sprinkled with pastry and paprika.