Preheat your oven to 425°F (220°C).
In a saucepan, combine raisins and water. Cook over medium heat until raisins are plump, about 5 minutes.
In a small bowl, mix sugar, cornstarch, and cinnamon. Stir into the raisin mixture. Cook and stir until the mixture thickens and boils. Remove from heat and stir in vanilla and butter.
For the crust, combine flour and salt in a mixing bowl. Cut in shortening until the mixture resembles coarse crumbs. Gradually add cold water, tossing with a fork until the dough forms a ball.
Divide dough in half. Roll out one half to fit a 9-inch pie dish. Transfer dough to pie dish. Trim even with edge. Add filling.
Roll out remaining dough to fit top of pie. Place over filling. Trim, seal, and flute edges. Cut slits in top.
Bake in preheated oven for 30-35 minutes, or until crust is golden brown.
Cool on a wire rack before serving.