Preheat the oven to 300F (150C) with the racks in the upper-middle and lower-middle positions.
Line 2 baking sheets with parchment paper.
Coat the dough balls in granulated sugar.
Arrange balls on prepared baking sheets, leaving 2 inches of space between them.
A half sheet (18×13 inches) will fit about 14 balls.
Place 2 baking sheets in the oven.
Bake for 10 min.
Rotate top to bottom and front to back.
Bake until the cookies just begin to darken around the edges, 10 more minutes (12 if starting from frozen).
Transfer to a wire rack and cool completely.
Repeat with remaining dough.
Store in an airtight container.
Cookies will keep up to 2 weeks.