Preheat oven to 375 F
In bowl, combine butter, 4 cups flour and cinnamon. Add egg and sugar then knead into ball
Sprinkle additional flour on counter and cut ball into six sections. Roll each section into 24-inch ropes then cut into 1-inch pieces and place on cookie sheet
Bake 10 minutes
To make topping: In bowl, combine sugar and cinnamon
Roll warm cookies in cinnamon sugar and let cool on rack