Oven Temperature: 450˚F (230˚C)
Put all of the ingredients, except for the pastry, into a large bowl and mix well, preferably with your hands.
Divide the pastry and meat mixture into six equal portions. Roll or cut (if using puff pastry) each piece of pastry into an oval or circle about six inches in diameter, and about quarter of an inch thick.
Place some of the bridie mixture in the middle of the pastry.
Wet the edge of the pastry with water, then fold over to seal.
Seal the edge of the pastry with a fork.
Place the finished bridies onto a baking sheet lined with a silicone sheet or piece of parchment paper. Cut a small slit or two in the top then brush with an egg white wash (slightly beat an egg white with half a teaspoon of water.)
Bake in a pre-heated oven at 450˚F (230˚C) for 10 minutes. Lower the temperature to 350˚F (180˚C) and cook for another 35 to 40 minutes until they are golden brown. If they start to get too brown, cover with aluminum foil. Remove from the oven and if not eating them right away, place on a metal cooling rack.
Serve hot, with a generous amount of HP Sauce. You can make it a full meal by adding hot, fluffy mashed potatoes and a green vegetable, like peas, (or Heinz beans).