1. Preheat the Oven:
- Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper.
2. Prepare the Filling:
- In a bowl, mix the pulled pork with the barbecue sauce.
3. Prepare the Puff Pastry:
- Roll out the puff pastry on a lightly floured surface to smooth out any creases. Cut the pastry into 9 equal squares (3×3 grid).
4. Assemble the Pastry Puffs:
- Place about 1 tablespoon of the pulled pork mixture in the center of each square. Top with a small pinch of shredded cheese.
- Fold each square diagonally into a triangle, enclosing the filling. Press the edges with a fork to seal.
5. Brush with Egg Wash:
- Transfer the pastry puffs to the prepared baking sheet. Brush the tops with beaten egg and sprinkle with sesame seeds, if using.
6. Bake:
- Bake for 15-18 minutes, or until the pastry is puffed and golden brown.
7. Serve:
- Let the puffs cool slightly before serving. Serve warm with extra barbecue sauce for dipping.