Mix first ingredients until crumbly. Mix 2nd ingredients; make a well and add egg mixture to flour mixture.
(I'm not sure if over-mixing matters or not!) Portion the dough into 8-10 balls (about the size of a pie plate when rolled out). Wrap each ball in plastic wrap and leave in the fridge overnight(or a few hours if you're in a rush).
Sprinkle cinnamon sugar onto work surface and roll out patties to the size of a pie plate. Cut into wedges and roll into scuffles. Roll from wide end down to the point. Place onto cookie sheet. Bake at 350 deg for 12 minutes.