Gramma's Southern Warm Banana Pudding

(This is my best interpretation of a recipe made without exact measurements)

1 cup sugar
3 T all-purpose flour
4 eggs separated
2 cups milk
1 stick butter
 3 overly ripe bananas (sprinkle with lemon juice if you don't want them to brown)
Vanilla wafers
*cornstarch

Mix flour, sugar, and milk in medium-sized pot over med-high heat,

Stir constantly for 7-8 min or until mixture thickens and begins to bubble (if you are having trouble getting it to thicken, add a tablespoon of cornstarch)

Whisk the egg yolks in a small bowl

Add a small amount of the hot pudding to that small bowl with the egg yolks and stir, then add that mixture back into the pot over the stove

Add the butter and mix together slowly over medium heat for another 2 min

Remove from stove and let cool

In 9x9 dish place sliced bananas and top with layer of wafers

Pour 1/2 of pudding over the wafers, then repeat another layer, ending with wafers on top

Serve while still warm
(I made pudding earlier in day for dinner, so I placed dish in oven on warm for about 10-15 minutes before I served)

If you want to make the meringue topping (which I failed at) you will need the egg whites, sugar, and cream of tarter. Beat until you create a foam with stiff peaks. Place on pudding and place in oven at 400 for 10-12 minutes or until browned.