Sift flour, measure; add baking powder, salt and sugar. Sift again.
Cut in shortening with pastry blender, blend until mixture resembles coarse corn meal. Stir with fork. Add enough milk to make soft dough.
Roll out and cut. Line dish with crust. Layer fruit, sugar, flour, sprinkle cinnamon and nutmeg, and butter on top of dough. Repeat until all fruit is used and top with crust. Brush the top with egg white and sprinkle it with a little sugar.
Bake the cobbler at 400 degrees for 35 to 40 minutes, or until cobbler is brown on top. Fresh or canned fruit may be used.