01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - In a small bowl, combine granulated sugar and ground cinnamon.
03 - Unroll the puff pastry onto a lightly floured surface and brush its entire surface with the melted butter.
04 - Evenly sprinkle the cinnamon sugar mixture over the buttered pastry.
05 - Gently press the sugar mixture into the pastry using your hands or a rolling pin.
06 - Fold the pastry sheet lengthwise with the sugar side inside and lightly roll over it to seal.
07 - Slice the folded pastry into 12 equal strips using a sharp knife or pizza cutter.
08 - Twist each strip several times and place them spaced apart on the prepared baking sheet.
09 - Brush the twists with beaten egg for a glossy finish, if desired.
10 - Bake for 12 to 15 minutes until golden brown and puffed.
11 - Remove from the oven and allow to cool slightly before serving.