Preheat oven to 400 degrees Fahrenheit.

Line a large baking sheet with parchment paper.

Stir 2 tablespoons sugar and cinnamon together in a small bowl. Taste, and add more sugar if you'd like the mixture a little sweeter.

Sprinkle flour over a large cutting board.

Unfold puff pastry sheet, and roll gently with a rolling pin to even out the surface and flatten just a little.

Whisk egg in a small bowl to make egg wash.

Use a pastry brush to brush the egg wash in a thin layer all over the rolled out dough. (You won't need all of it.)

Sprinkle most of the cinnamon sugar evenly over the dough, reserving a little.

To make long breadsticks, cut dough vertically into slices that are close to 1-inch wide.

To make short breadsticks, cut the dough in half horizontally to make two rectangles. Then slice each rectangle into 1-inch slices.

Pick up each strip, hold each end, and twist several times.

Place twists on baking sheet, leaving an inch of space between them. (You may need to bake these in two batches if they don’t all fit on your baking sheet.)

Brush any exposed dough not covered in cinnamon sugar with egg wash and sprinkle with reserved sugar.

Bake for 15 minutes, until puffed and golden brown.