Ingredients (8)⌄
400g mushrooms
1-2tbsp English Mustard
Dash Olive Oil
750g piece Beef Fillet
6-8 slices Parma ham
500g Puff Pastry
Dusting Flour
2 Beaten Egg Yolks
Beef Wellington
Roll out the puff pastry on a floured surface to a large rectangle, the thickness of a £1 coin.