Heat oven to 350°F. Unwrap dough; cut into 4 equal rolls. Work with 1 roll at a time; keep remaining 3 rolls in freezer until ready to slice. Cut each roll into 13 or 14 (1/4-inch) slices. On ungreased cookie sheets, place slices 2 inches apart, reshaping into rounds as necessary. Sprinkle each cookie with sugar.