Heat oven to 375°F. Line cookie sheet with parchment paper.
Melt butter and mix with cinnamon and sugar.
Unroll dough; separate into 12 breadsticks. With finger, press dough to make an indention length wise down the center of breadstick.
Spoon cinnamon/sugar mixture into breadstick indention. Fold breadstick dough lengthwise over cinnamon/sugar mixture. Press to seal edges of dough.
Twist and stretch dough to make a rope. Form a pretzel shape and seal ends of dough. Place raw pretzel onto prepared cookie sheet.
Beat egg in a bowl and wash over pretzels. Sprinkle with sugar (optional).
Bake at 375°F for 12 - 18 minutes or until golden brown.
Mix water and powdered sugar to make a glaze. Drizzle glaze over pretzels. Serve warm.