Roll pastry on surface, sprinkled lightly with sugar, to a rectangle ½" thick. Sprinkle with sugar. Turn over and roll into a rectangle three times as long as it is wide and ⅜" thick. Sprinkle ¼ c. sugar over pastry.
Fold ends of dough so that they meet in the middle; flatten slightly. Fold folded edges again to meet in the middle and flatten slightly.