Roll out the remaining pastry to about 11 x 14in. When you are ready to cook the beef wellingtons, score the pastry lightly and brush with the egg wash again, then bake at 200°C/Gas 6 for 15-20 minutes until the pastry is golden brown and cooked. But a closer look at its main components suggest French roots: beef filet, pâté, duxelles, crêpes and puff pastry. Keep it air-free. Trim carefully. Click here, about all of our restaurants in the group, 2 egg yolks, beaten with 1 tbsp water and a pinch of salt, 200g beef trimmings (ask the butcher to reserve these when trimming the fillet). I had to fiddle around with the measurements and temps b/c they were in grams, mils, celsius...etc. It smells Christmassy and it is absolutely perfect. Remove the cling film from the beef, then wrap the pastry around each ham-wrapped fillet. Seal the rim with the edge of a fork or spoon handle. Rest for 10 minutes before carving. Gordon Ramsay's beef Wellington recipe looks so impressive but takes just 20 minutes to prepare, made with beef fillet, mushrooms and readymade pastry. Serve the beef wellingtons sliced, with the sauce as an accompaniment.