01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Unroll thawed puff pastry sheet onto a lightly floured work surface.
03 - Spread raspberry preserves evenly across pastry surface, maintaining a ½-inch border along all edges.
04 - Distribute fresh raspberries over preserves if desired for enhanced texture and flavor.
05 - Starting from a long edge, roll pastry tightly into a uniform cylinder.
06 - Slice cylinder into 8 equal pieces using a sharp knife.
07 - Place rolls cut-side up on prepared baking sheet, spacing evenly.
08 - Brush tops of rolls with beaten egg for golden finish.
09 - Bake 18-20 minutes until rolls are deeply golden and puffed throughout.
10 - Allow rolls to cool briefly on baking sheet, then dust generously with powdered sugar.