Snowy Glazed Apple Squares

(Apples bake between two crusts in jellyroll pan. Top is glazed)
2 ½ cups sifted flour
½ tsp salt
1 cup shortening
2 eggs, separated
Milk
1-½ cups crushed corn flakes
5 cups sliced peeled Mutsu apples
1-cup sugar
1 ½ tsp ground cinnamon
1-¼ cups sifted confectioner’s sugar
3 TB water
½ tsp Vanilla

Combine flour and salt in bowl. Cut in shortening. In measuring cup, beat egg yolks with enough milk to make 2/3 cup. Add to flour mixture, toss lightly.
Divide dough almost in half. Roll larger portion to fit a 15 ½ x 10 ½ x 1 jellyroll pan. Sprinkle with corn flakes. Spread apples over flakes
Combine white sugar and cinnamon; sprinkle over apples
Roll out remaining dough. Place on top: seal edges. Beat egg whites until foamy, spread on crust. Bake in moderate over 350 degrees 1 hour.
Meanwhile, make glaze by combining confectioners sugar, water and vanilla
When dessert is done, remove from oven and cool slightly then spread with glaze. To serve, cut into squares.