I have used this recipe when I did not have solid vegetable shortening.
For a two crust pie:
2 3/4 cups AP flour
1 t salt
1/2 cup vegetable oil
1/2 cup milk
Mix together and shape into two balls, wrap in plastic wrap, chill 15 minutes or more in the refrigerator. Roll on a floured pastry cloth.
I prefer the solid shortening but, this works in a pinch.