Preparation: Preheat the oven to 375°F (190°C). Cut the pastry into squares (approximately 4 x 4 inches each). Slice the dates vertically without cutting all the way through, remove the seeds, and create space for the nuts.
Fill Dates: Insert a nut into each date and close it.
Assemble Pies: Place each filled date onto a puff pastry square, fold the pastry over, and seal with a fork.
Brush with Egg Wash: Brush the tops with egg wash for a golden finish. Optionally, sprinkle with sesame seeds for color.
Bake: Arrange on a parchment-lined baking sheet and bake for 20-25 minutes until golden. Allow to cool for 5 minutes before serving warm or at room temperature. Enjoy!