Stir together the flour and salt. Cut the shortening into the flour until you get small crumbles.
Add cold water, l tablespoon at a time, just until moistened.
Form into 4 ball and roll out on lightly floured surface. Place onto prepared pan.
For filling, combine nectarines, flour, sugar and cinnamon until combined. Place in center of dough rounds, leaving an inch around the edges. Fold edges over the filling. Sprinkle with more cinnamon-sugar, if desired.
Bake for 10-15 minutes or until lightly browned, checking after 10 minutes.