To make crust:  Combine flour and salt.  Cut in butter with pastry blender until mixture resembles coarse meal.  Sprinkle with water until crust comes together.  Shape into a ball.  Roll dough out and place in 4-5 inch dish.  Trim off excess pastry and fold under the crust.

Preheat oven to 350 degrees.  Mix corn syrup, egg, sugar, salt, butter, and vanilla in a bowl.  Stir in pecans.  Pour over pie crust.  Bake for 30 minutes until set.  Remove from oven and let cool