In a large bowl, whisk together flour, sugar, and salt. Using a pastry blender, cut in butter and shortening until mixture is crumbly. Using a fork, stir in ice water 1 tablespoon at a time just until mixture comes together and starts to form a ball. (You may not need to use all the water.)
Turn out dough onto a lightly floured surface, and gently knead until dough holds together. Shape into a disk, and wrap in plastic wrap. Refrigerate for 1 hour.
On a lightly floured surface, roll dough to a 14-inch circle, about ⅛ inch thick. Press into bottom and up sides of a regular or deep-dish 10-inch pie plate. Trim excess dough. Fold edges under, and crimp as desired.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/chocolate-chess-pie-recipe/