Casserole of chicken

Clean and joint a tender spring chicken. Put into a frying-pan three tablespoonfuls of butter and fry in this a small onion and a carrot, both cut into tiny dice. When these vegetables are lightly browned, turn into the casserole, add to them two cupfuls of clear soup stock, in which three bay leaves and a little thyme have been boiled and then removed. In this consommé lay the jointed chicken, put the closely-fitting cover on the casserole and set it in a steady oven. It should cook for an hour. At the end of this time stir into the chicken a dessertspoonful of tomato catsup. Recover and cook for half an hour longer. Then add two dozen small French mushrooms which have been previously stewed for ten minutes, lastly, a glass of sherry. Season the whole to taste with pepper and salt and leave uncovered in the oven long enough for the chicken to brown. Fresh mushrooms are, of course, better than canned when you can get them.