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In a pot add 1 onion, 1 leek, 2 carrots and 3 potatoes roughly chopped. Season with salt, pepper and oil. Add chicken to the slow cooker, season generously, and cook on high for 4 hours (or low for 6) If you want you can make a gravy with the juices, leek and onion by frying off 1 tbsp butter and 1 tbsp flour, and slowly adding and cooking the stock. ❤️