3 lb Fillet of beef
1 tbsp Vegetable oil
1½ oz Butter
8 oz, sliced Button mushrooms
6 oz Smooth liver pate
13 oz Puff pastry
1 Egg beaten, to glaze

Pre-heat oven to 425 °F
Trim and tie up the fillet at intervals with fine string so it retains its shape.
Heat the oil and ½ oz of the butter in a large frying pan, add the meat and fry briskly on all sides.
Press down with a wooden spoon while frying to seal well.
Roast for 20 minutes, then set the beef aside to cool and remove the string.
Meanwhile, cook the mushrooms in the remaining butter until soft; leave until cold, then blend with the pate.
On a lightly floured surface, roll out the pastry to a large rectangle about 13 x 11 inches and ¼ inch thick.
Spread the pate mixture down the centre of the pastry. Place the meat on top in the centre.
Brush the edges of the pastry with the egg.
Fold the pastry edges over lengthways and turn the parcel over so that the join is underneath. Fold the ends under the meat on the baking sheet.
Decorate with leaves cut from the pastry trimmings.
Brush with the remaining egg and bake for 50-60 minutes depending how well done you like your beef, covering with foil after 25 minutes.
Allow the Beef Wellington to rest for 10 minutes before serving.