Combine flour and part of lard, mix to the texture of cornmeal.
Add remaining lard and mix until pieces are about the size peas.
In a seperate dish, beat egg, add salt, sugar if using, vinegar and iced water.
Pour over flour mixture and stir gently.
More water may be needed to form dough into a ball. (use as little water as necessary)
This dough rises - so roll thin.
This is a very flaky and soft dough.
This makes 2 double crusted pies.
Bake a single crust at 425.