Place the thawed pie crust on a lightly flour dusted rolling surface. Carefully, unroll the pie crust.
With a rolling pin, lightly roll in all directions to slightly enlarge the crust.The exact dimensions of the pastry don't matter. Aim for about 10 inch long side and 7 inch shorter side.
Place an eighth sheet pan upside down on the crust and use a sharp knife to cut around it. Trim off the edges. You will have a rectangular pie crust ready to be stuffed.
On one half of the pie crust, spread the cold potato filling leaving about ¼ inch from the edge.
Carefully, fold over the other half of the pie crust to enclose the aloo filling to make a rectangular parcel. Seal the edges with hands or use a fork.
Using a shap knife, cut down (do not saw) the crust into 3.5 to 4 inch sticks along the shorter edge. I keep them about ½ inch wide.
Transfer each strip to a baking sheet lined with parchment paper, spacing them about an inch apart. Refrigerate for about 30 minutes. The colder they hit the hot oven, the more flaky they will turn out.