In a saucepan or double boiler, combine:
Whisk until no lumps are present. Then add:
Place over medium heat. Cook, stirring constantly, until thickened (about 10 minutes). Continue cooking for 10 minutes more. Beat:
Slowly add a small amount of hot mixture to yolks while whisking briskly to temper the egg. Return tempered mixture to saucepan. Add:
Cook for 5 additional minutes, or until pudding is properly thickened. In casserole dish, layer Vanilla Wafers, bananas (I use 3-5 bananas total), and pudding. Top with meringue. Bake at 425 degrees for 5-7 minutes.