Slow cooked steak and ale puff pastry pie

Slow Cooked Marinated Beef (32%) [Beef (90%), Water, Maize Starch, Salt, Lemon Juice], Fortified Wheat Flour [Wheat Flour, Calcium Carbonate, Iron, Niacin (B3), Thiamin (B1)], Pale Ale (contains Barley) (12%), Palm Oil, Salted Butter (4%) [Butter (Milk), Salt], Onions, Rapeseed Oil, Water, Maize Flour, Cornflour, Pasteurised Free Range Whole Egg, Beef Dripping, Beef Bouillon [Yeast Extract, Beef Fat, Salt, Water, Tomato Paste, Beef Stock], Salt, Tomato Paste, Dextrose, Whole Milk, Barley Malt Extract, Black Pepper, Bay Leaf Powder