How to Bake a delicious Southern style sweet potato pie

A elegant dessert from the American South! For this recipe, you will need: 1 1/2 cups flour, 3/4 cup vegetable shortening, 3 tablespoons cold water, 2 egg yolks, 1/8 teaspoon salt, 2 cups cooked and mashed sweet potatoes, 2 eggs, 1 cup sour cream, 1/2 cup brown sugar, 1 teaspoon cinnamon, 1/2 teaspoon nutmeg, 1/4 cup butter, 1/4 cup raisns and 1/4 teaspoon salt.