Ingredients

  • 400g flat cap mushrooms, roughly chopped
  • Sea salt and freshly ground black pepper
  • Olive oil, for cooking
  • 750g piece of prime beef fillet
  • 1-2 tbsp English mustard
  • 6-8 slices of Parma ham
  • 500g ready-made puff pastry
  • Flour, to dust
  • 2 egg yolks, beaten


  1. Put the mushrooms into a food processor with some seasoning and pulse to a rough paste. Scrape the paste into a pan and cook over a high heat for about 10 mins, tossing frequently, to cook out the moisture from the mushrooms. Spread out on a plat...

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