Step 1

Blanch broccoli in boiling water for 5 minutes, then drain and arrange on the base of a casserole dish.

Step 2

Melt butter in a frying pan, stir in flour and cook for 1 minute, stirring constantly.

Step 3

Remove from heat and stir in the stock. Bring to the boil, then stir in the cream and sherry, and season to taste.

Step 4

Spoon half the sauce over the broccoli, then lay the chicken on top and pour over the remaining sauce.

Step 5

Sprinkle with the Parmesan and bake at 180C for 20 minutes until golden.