Prohoroffs Piroshki

Directions

1. 1
   Add the ground beef to the slow cooker.
2. 2
   Top with the salt, pepper and garlic powder.
3. 3
   On top of that, place the finely chopped onion.
4. 4
   Cube the butter over the onions.
5. 5
   Cover and slow cook on low for 5 to 6 hours until onions are soft and sweet.
6. 6
   Smash the beef and onions together and add the Worcestershire sauce and tomato paste, then stir.
7. 7
   In the meantime, youll have defrosted the frozen puff pastry sheet.
8. 8
   Roll it out until its twice its size (using flour so the dough doesnt stick).
9. 9
   Cut the sheet into 6 equal pieces, which should be about 5 inches by 5 inches each.
10. 10
    One at a time, place a small sheet of pastry on an oiled baking sheet.
11. 11
    Spoon in about 1/4 cup of the beef and onion mixture, then fold the sheet, corner to corner, twice and pinch for closure.
12. 12
    Cook at 400 degrees F for 15 minutes, or until golden and flaky.
13. 13
    Serve while hot.