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