Allow the sheets to thaw at room temperature for 30 minutes. You want them cool, but not frozen.
Carefully, unfold the sheets and place them on a sugared cutting board.
Lightly sprinkle the sugar and cinnamon on the top of the sheet of puff pastry and roll it up jelly roll style.
Wet the inside edge of the roll so it will stick closed.
Roll into plastic wrap and place back in the freezer for 30 minutes.
Preheat oven to 400F.
Remove from freezer and cut into 1/4inch thick circles.
Place on cookie sheet and cook for 10 minutes or until golden brown.