Preheat oven to 425 degrees F.
Blend shortening, flour, powdered sugar, butter and salt. Cut flour until it resembles cornmeal. Beat egg, blend in vinegar and water, and sprinkle over flour mixture. Toss with fork. Chill before rolling, about 1 hour. Makes 2 (9-inch pie crusts).
In a large-size bowl, mix together all ingredients and pour into the pie shell. Cover with top crust and bake for 15 minutes. Reduce temperature to 350 degrees F and bake for 45 minutes or until golden. Serve warm.