Preheat oven to 400 deg F. Put peaches in bottom of an 8 x 8 pan. Bake in oven until peaches start to simmer. Mix together the sugar and the 3 T of flour and sprinkle over the peaches. Add melted butter.

Put remaining flour into a bowl; add salt and shortening and work with fingertips until mixture resembles coarse oatmeal. Mix in water to form a stiff sough. Roll out dough on lightly floured board into a square large enough to fit over the peaches.

Prick pastry with fork and bake for 35-40 minutes.