Chinese Beef Puff Pastry Pies: A Savory Snack with Flaky Perfection

Heat the vegetable oil in a large skillet over medium heat.
Add the chopped onion and garlic and sauté until softened, about 3 minutes.
Add the ground beef and cook, breaking it up with a spoon, until browned and cooked through.
Stir in the soy sauce, hoisin sauce, oyster sauce, rice vinegar, sesame oil, five-spice powder, and black pepper. Cook for 2-3 minutes until the mixture thickens and is well combined.
Remove from heat and stir in chopped green onions and cilantro. Allow the filling to cool for 10-15 minutes.
Prepare the Pastry:

Preheat your oven to 375°F (190°C).
Roll out the puff pastry on a lightly floured surface and cut it into 4-6 squares, depending on the desired size of your pies.
Assemble the Pies:

Place a generous spoonful of the beef filling in the center of each puff pastry square.
Fold the pastry over the filling to form a triangle or rectangle, pressing the edges together to seal. Use a fork to crimp the edges for a decorative touch.
Lightly beat the egg and brush it over the top of each pie for a golden finish.
Bake:

Arrange the pies on a baking sheet lined with parchment paper.
Bake in the preheated oven for 20-25 minutes, or until the pastry is golden and puffed.
Serve:

Let the pies cool for a few minutes before serving. Enjoy them with a side of soy sauce or a dipping sauce of your choice.
Serving and Storage Tips: