Preheat the oven to 350° and line a large rimmed baking sheet with parchment paper. Remove both sheets of parchment paper from 1 piece of dough and, using a 2-inch scalloped round cutter, stamp out cookies. Transfer to the prepared baking sheet, about 2 inches apart, and sprinkle generously with sanding sugar. Bake the cookies for 12 minutes, or until the edges are firm; rotate the baking sheet halfway through baking. Transfer to a wire rack and let cool completely. Repeat to bake the remaining piece of dough, rerolling any scraps.