On a lightly floured work surface, roll out one disc of dough at a time until 1/8 inch (3 mm) thick. Using a fluted pastry wheel or a knife, cut the dough into twelve 2 ½-inch (6 cm) squares. Arrange the squares evenly spaced out on a baking sheet. Reuse any dough scraps. If the dough becomes too warm or too soft, refrigerate as needed.