Fry leek or onion and bacon. Fry a tablespoon of flour. Add chicken stock gradually and let it thicken. Add cream (but creme fraise would be awesome), dijon mustard and the chicken. Put in a pie dish or something and sheet of puff pastry over the top. Bake.
To celebrate the release of SHAUN THE SHEEP THE MOVIE, In Cinemas March 26, we are giving away 50x prize packs that include a Shaun the Sheep drink bottle, stationery set, drawstring bag and family pass to see the film.