Slice your onions and add to a pan with butter and cook for about 10-15 minutes until onions start to caramelise.
Add your chicken, onions and the rest of the ingredients apart from the cheese to the slow cooker and cook for 3-4 hours on high or 7-8 hours on low. (Thicken to a gravy with powder, granules or cornflour) then add the cheese and allow to melt for 15 minutes
Serve with some creamy mash and garnish with some fresh thyme.
