Mr Kew's Chicken, Leek and Bacon Pie

This pie is saucier than a Carry On film, with appetising bacon prevalent throughout. It features a decorative pastry chicken on top as the sweet, smelling pastry rises beautifully in the oven. Upon opening her up, I am assaulted by a leek; there are bountiful chunks of chicken too, but the bacon is the real star of the show all wrapped in a fine white sauce