This is a test of commonsense. Complete the next sentence:

How to bake a sweet potato pie
Place the flour, salt and butter or shortening into a blender fitted with a steel blade.
Blend the mixture until it looks like crumbs.
Remove the crust from the blender and place it on a cutting board.
Add the water one tablespoon at a time until the dough forms a ball. Roll the crust out using a rolling pin into a 12 " (30 cm) circle.