Take 3 eggs and separate the whites from the yolks. Place them into a bowl and add one whole egg.

In a large pot, over medium heat, combine granulated sugar, brown sugar, flour, and salt. Stir in egg mixture, milk, and heavy cream.

Cook, uncovered for 10 minutes, stirring often, until thickened.

Remove from heat and add vanilla.

Allow to cool slightly before assembling parfaits.

In a large ziplock bag, crush vanilla wafers.

Place 2 tablespoons of wafers into the bottom of a parfait glass or small jar.

Top with 2 tablespoons pudding, followed by 2 more tablespoons of wafers and ending with 2 more tablespoons of banana pudding.

Top each glass with a vanilla wafer, slice of banana, and a dollop of whipped cream.