Mix flour,sugar and salt in top of a double boiler;slowly stir in hot milk and cook till mixture thickens,stirring constantly.Stir a little of the hot mixture into beaten egg yolks,pour back into the double boiler and cook for 2 minutes.Remove from heat and add vanilla.Cool until warm.
Alternate layers of wafers,sliced bananas and pudding in a deep 2qt. baking dish.
In a medium bowl,beat the 2 egg whites until foamy with an electric hand mixer;gradually add 1/4 cup confectioners sugar and continue beating until stiff peaks form.Spoon lightly on top of pudding.Bake at 400 degrees for 5-10 minutes or until golden brown.
**Note...If you're making this for large family gatherings you may want to double ingredients! :)