Chicken, Mushroom and Rice Soup

Roast Chicken Stock (Water, Yeast Extract, Chicken Bones, Chicken Fat, Salt, Carrots, Onions, Tomato Paste, Bay Thyme), Onions, Mushrooms (9%), Carrots, British Chicken Thighs (8%), Basmati Rice (4%), Single Cream (Milk), Cornflour, Celery, Salt, Parsley, Thyme, Ground Black Pepper, Ground Bay Leaves