Peel and slice 2 bananas into thin coin shapes and spread evenly on top of the baked pie crust.
Crack and separate 2 eggs. Save the whites for the meringue topping (later).
On the kitchen counter, using a wire whisk, beat the egg yolks to a creamy consistency in a sauce pan.
Add the milk, sugar, flour, butter, and pinch of salt to the sauce pan and mix well.
Move the sauce pan to the stove. Continue stirring the mixture and gradually bring it to a boil as it becomes a thick custard consistency.
Remove the saucepan from the heat and allow the custard to completely cool.
Then spread the cooled custard mixture over the previously sliced bananas.
Peel and slice 2 more bananas into coin shapes and spread evenly on top of the custard layer.