Prepare the Puff Pastry: Roll out the thawed puff pastry on a lightly floured surface. Use a pizza cutter or knife to cut it into squares or triangles as per your preferred shape.

Add Your Filling: Place a small spoonful of your chosen filling in the center of each pastry piece. Be careful not to overfill, as this can cause the pastries to burst.

Seal the Pastries: Fold the pastry over the filling and press the edges together securely. Use a fork to crimp the edges, ensuring no filling escapes during cooking.

Brush with Egg Wash: Gently brush the top of each pastry with the beaten egg to give it that lovely golden color when cooked.

Arrange in the Air Fryer: Place the pastries in the air fryer basket in a single layer, leaving space between each one for airflow.

Cook: Set the air fryer to 375°F (190°C) and cook for 10-15 minutes, until they are golden and crispy. Check them halfway through and give them a gentle turn for even cooking.

Cool and Serve: Let the pastries cool for a few minutes before serving. They can be dusted with powdered sugar or topped with fresh herbs for a savory option.