Line pie plate with pastry.
Mix sugar, flour and cinnamon together and sprinkle about two tablespoons on bottom of crust.
Mix remaining flour, sugar and cinnamon with apples, coating apples thoroughly.
Put apple mixture in bottom crust, being sure that apples are evenly distributed and are lying flat around the edges.
Apply top crust that has been slotted four or five times.
Bake at 425 degrees for 15 minutes. Reduce heat to 375 degrees until done, 35 to 40 minutes.