Preheat oven to 400F. Cover baking sheets with silpat or parchment paper. Thaw puff pastry according to directions on the box.
Whisk egg in small bowl, set aside.
Unfold puff pastry sheets and use a knife or pizza wheel to cut 12 strips from the short side.
Combine the parmesan cheese, garlic powder and rosemary on a plate, casserole dish or tray.
Take one strip at a time: brush egg wash on both sides of the strip, lightly twist and roll the strip in the parmesan mixture and lay it on the baking sheet. Press seems together as necessary. Repeat with remaining strips.
Bake for 15 minutes. Cool on wire rack and Enjoy!
Try these variations for fun! Replace the parmesan, salt, garlic powder and rosemary with one of these combos. Use your discretion for the quantities of each spice.