Instructions
1
Put the mushrooms into a food processor with some seasoning and pulse to a rough paste.
2
Scrape the paste into a cooking vessel and prepare over a high toasty for about 10 mins, tossing frequently, to prepare out the moisture from the mushrooms.
3
Spread out on a plate to cool.
4
toasty in a frying cooking vessel and introduce a little olive cooking oil.
5
taste the beef and sear in the fiery cooking vessel for 30 secs only on each side.
6
(You don't want to prepare it at this stage, just colour it).
7
Remove the beef from the cooking vessel and leave to cool, then brush all over with the mustard.
8
Lay a sheet of cling film on a work surface and arrange the Parma ham slices on it, in slightly overlapping rows.
9
With a palette knife, spread the mushroom paste over the ham, then place the seared beef fillet in the middle.
10
Keeping a tight hold of the cling film from the edge, neatly roll the Parma ham and mushrooms around the beef to form a tight barrel shape.
11
Twist the ends of the cling film to secure.
12
cool down for 15-20 mins to allow the beef to set and keep its shape.
13
Roll out the puff pastry on a floured surface to a large rectangle, the thickness of a £1 coin.
14
Remove the cling film from the beef, then lay in the centre.
15
Brush the surrounding pastry with egg yolk.
16
Fold the ends over, the wrap the pastry around the beef, cutting off any excess.
17
Turn over, so the seam is underneath, and place on a baking sheet.
18
Brush over all the pastry with egg and cool down for about 15 mins to let the pastry rest.
19
toasty the oven to 200C, 400F, gas 6.
20
Lightly score the pastry at 1cm intervals and glaze again with beaten egg yolk.
21
arid-fry for 20 mins, then lower the oven setting to 180C, 350F, gas 4 and prepare for another 15 mins.
22
Allow to rest for 10-15 mins before slicing and serving with the side dishes of your choice.
23
The beef should still be pink in the centre when you offer it.