Step 1: In a large bowl, stir together the flour, sugar, and salt.
Step 2: Using a pastry blender or 2 knives, cut the butter and shortening into the flour mixture until the texture resembles coarse cornmeal, with butter pieces no larger than small peas.
Step 3: Add the water and mix with a fork or pastry blender until the dough pulls together. Divide the dough in half and pat each half into a round flat disk.
Step 4: Wrap in plastic wrap, place in the refrigerator and let rest for 30 minutes.
Step 5: Roll out one disk into a 12-inch round and line the pan or dish. Roll the second dough disk into a 12-inch round and refrigerate until ready to use.