Preheat oven to 425°. Sprinkle a surface with 1/4 cup sugar; unfold puff pastry sheet on surface. Sprinkle with 2 tablespoons sugar. Roll into a 14x10-in. rectangle. Sprinkle with 1/2 cup sugar to within 1/2 in. of edges. Lightly press into pastry.
With a knife, very lightly score a line crosswise across the middle of the pastry. Starting at a short side, roll up jelly-roll style, stopping at the score mark in the middle. Starting at the other side, roll up pastry jelly-roll style to score mark. Freeze until firm, 20-30 minutes. Cut into 3/8-in. slices.
Place cut side up 2 in. apart on parchment-lined baking sheets; sprinkle lightly with 1 tablespoon sugar. Bake for 8 minutes. Turn pastries over and sprinkle with remaining sugar. Bake until golden brown and glazed, about 3 minutes longer. Remove to wire racks to cool completely. Store in airtight containers.
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