Chicken and Apple Casserole Recipe

A friend gave me this tasty recipe for chicken with apples.
Ingredients
4 chicken breasts or portions
1tablespoon of olive oil
1 onion chopped
2 sticks of celery sliced
1 1/2 tablespoons of plain white flour
10 fl oz --1/2 pint apple juice
1/4 pint chicken stock--5 fl oz
1 cooking apple cored and quartered
2 bay leaves
2 tablespoons of clear honey
1 yellow pepper cut into slices
1 tablespoon of butter
2 eating apples
2 tablespoons of demerara sugar
salt and pepper
fresh mint chopped to garnish

Method
Fry the chicken pieces in oil for 10 minutes and then put into the casserole dish.
Fry the onion and celery until soft add the flour. Add the apple juice slowly to the onions, celery and flour, stir and bring to the boil. Add the cooking apple, bay leaves, pepper and honey. Add to the chicken. Cook in the oven for 3/4 hour at gas 5, 190C, 375F. Check the chicken is cooked right through. Line the grill pan with foil, place on it the sliced apples, add half the butter and sugar. Grill. Turn over and add the rest of the butter and sugar, it should bebrown but not burnt. Garnish the casserole with this. Serve with a salad and pasta, rice or potatoes.