Mix together flour, butter, baking powder, yolks and 5 tablespoons sugar. Press 2/3 of dough into a 9x13 inch greased baking dish. Bake at 350 degrees for 20 minutes. Put remaining 1/3 of dough in freezer. Spread filling choice over baked dough.

Whip egg whites until stiff. Slowly add sugar until peaks form, then, with mixer at low speed, add vanilla pudding. Whip together and spread evenly over filling. Remove remaining frozen dough from freezer and grate dough over baked part. Bake 10 minutes or until light brown. Cut into squares. Refrigerate.