Mix flour and salt in mixing bowl. Cut shortening into the flour with a pastry cutter, until mixture resembles the texture of tiny split peas. Do not use your hands to try and mix it, the heat from you hands will melt the shortening, causing the pastry to be "heavy", not light and flaky.
Once mixture is the right texture, add the ice water and combine with a fork. It may appear as if it needs more water, it does not. Quickly gather the dough into a ball and flatten into a 4-inch-wide disk. Wrap in plastic, and refrigerate at least 30 minutes.