Chicken a la king recipe

For this chicken a la king recipe, you will need:

3lb / 1.35kg cooked chicken pieces
4 oz / 100g sliced white mushrooms
Two peppers, orange, yellow, green or red, cut into triangular pieces
Handful of cooked peas
1/2 onion, cut into medium chunks
2 oz /50g butter
1 tbsp plain flour
1 pint / 600ml chicken stock
1/4 pint or 150ml cream

(Serves 4)

Fry the mushrooms, onion and peppers in the butter until soft. Stir in the flour and stock. Bring to the boil. Add the chicken and bring back to boil. Stir in the peas and cream. Serve with steamed rice.