Place the turkey in a roasting tray and cover with the softened butter, salt and pepper. Stuff the cavity with bay leave.
Place in the oven and roast for 2 ½ hours.
Meanwhile, place all the glaze ingredients in a pan and cook on a low heat until the sugar has melted. Then turn up to a gently simmer until the glaze has thickened and become slightly syrupy. Remove from the heat and leave to cool slightly.
After the 2 ½ hours remove the turkey from the oven and cover generously with the glaze. Return to the oven and cook for a further 30 minutes or until the cooking juices run clear.
