01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - In a mixing bowl, toss pear slices with granulated sugar, lemon juice, and ground cinnamon. Set aside.
03 - On a lightly floured surface, roll out thawed puff pastry sheet to smooth seams as needed. Slice into 6 even rectangles.
04 - Arrange several pear slices along the center of each pastry rectangle, leaving roughly a 1/2-inch border.
05 - Fold the edges of the pastry slightly over the pears to create a raised rim.
06 - Brush the exposed pastry edges with beaten egg for shine and color.
07 - Place the prepared pastries onto the lined baking sheet.
08 - Bake in preheated oven for 20 to 25 minutes until the pastry turns golden and the pears are tender.
09 - While pastries bake, gently warm apricot jam with water in a small saucepan until liquefied. Optionally strain for smoothness.
10 - Once out of the oven, while still warm, brush the pears with the apricot glaze using a pastry brush.
11 - Allow pastries to cool slightly before serving. Enjoy warm or at room temperature.