Pre-heat oven to hot (200 degrees celsius / 390 degrees fahrenheit, fan-forced).
Pour boiling water over the chopped bacon and allow to steep for 10 minutes.
Grease the pie dish and line with one of the pastry sheets. Place in the fridge.
Once bacon has steeped for 10 minutes, drain off water and fry for 2-3 minutes.
Take the pastry case out of the fridge and add half of the bacon, half of the onion and half of the parsley.
Carefully add eggs on top, and break one or two of the yolks (if you didn't already break them when adding to the pastry shell).
Sprinkle salt and pepper and Worcestershire sauce over the top of the eggs. Add remaining bacon, onion and parsley on top.
Place remaining pastry sheet on top. Press edges together and trim any excess pastry.
Brush with a little milk.
Bake in hot oven for 15 minutes. Reduce temperature to moderate (180 degrees celsius / 355 degrees fahrenheit, fan-forced) and continue to bake for another 20-25 minutes or until pastry is golden brown.
Serve hot or cold.
Notes
Storing:It should keep for up to a few days if stored, covered or in an airtight container, in the fridge.To re-heat, place in a moderate oven (covering the pie with foil to prevent it drying out). This should take between 10 and 20 minutes. You could also re-heat in the microwave oven for about a minute.Freezing:Technically, you can freeze it. However, it can affect the texture of the egg so I recommend making this up fresh and eating any leftovers (stored in the fridge) within a few days.Nutrition:The nutrition information is an automatically generated estimate and is not guaranteed to be accurate.Tips:Serve with homemade Tomato Relish or Tomato Sauce.Don't skip the step of steeping the bacon. "The addition of water keeps the initial cooking temperature low and gentle, so the meat retains its moisture and stays tender as the fat renders." (From America's Test Kitchen website).