Preheat oven to 200°C. Line a baking sheet with parchment paper.
Unroll the pastry sheet and glaze with the pesto. Scatter most of the cheese over.
Cut the pastry into long 1cm wide strips.
Pick up a strip with both hands, then twist the ends in opposite directions. Place the twirls onto the baking sheet and press both ends down to the sheet to keep their shape.
Bake for 10-12 minutes until golden.
Remove the tray from the oven and scatter over the remaining Parmesan to melt onto the twirls. Let them cool.