Line unpricked pastry shell with a double thickness of heavy-duty foil.
Bake at 375° for 5 minutes.
Remove foil; bake 5 minutes longer.
In a blender, combine the cream, eggs, butter, onion, flour, sugar and salt; cover and process until blended.
Stir in corn; pour into crust.
Bake for 35-40 minutes or until a knife inserted near the center comes out clean.
Let stand for 10 minutes before cutting