You can freeze a scone before or after it is baked. If you are freezing them before they are baked, cut them into wedges and then freeze. You can bake the scones straight from the freezer they will just take a minute or two longer. To freeze them after they are baked, I recommended freezing them without the glaze and glazing them after they are thawed and before serving. Store them in an airtight freezer bag and they will keep for 3-4 monhts. Thaw at room temperature and add glaze.