01 - Set the oven to 400°F and line a baking sheet with parchment paper.
02 - Combine granulated sugar and ground cinnamon in a small bowl.
03 - Unroll the puff pastry onto a lightly floured surface and brush it evenly with melted butter.
04 - Sprinkle the cinnamon sugar mixture over the buttered pastry evenly.
05 - Gently press the sugar and cinnamon into the pastry using your hands or a rolling pin.
06 - Fold the pastry in half lengthwise with the sugar side inside, then roll lightly 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 arrange them spaced out on the prepared baking sheet.
09 - Brush each twist with beaten egg for a glossy finish, if desired.
10 - Bake for 12 to 15 minutes until the twists are golden brown and puffed.
11 - Remove from oven and let cool slightly before serving.