Filling: In large saucepan, simmer brown sugar, cornstarch, water and apples for 5 minutes. Stir in cinnamon, nutmeg and 1 tablespoon lemon juice.

Pastry: Mix together flour, salt and shortening. Add egg yolks, water and 1 tablespoon lemon juice. Mix well. Divide pastry dough into 2 balls. Roll one to fit the bottom and sides of a 9 x 13-inch pan. Spread apple filling on dough. Roll other ball of dough to fit top exactly. Fold sides over top crust edge and pinch to seal. Bake at 400° for approximately 40 minutes. 

Glaze: Mix together and drizzle over warm pastry. Cut into squares.