01 -
In a large mixing bowl, whisk sweetened condensed milk with cold water until fully combined. Add instant vanilla pudding mix and whisk vigorously until smooth and free of lumps. Cover and refrigerate for 4 hours, until the mixture sets.
02 -
Using another large bowl, whip heavy cream with an electric mixer until soft peaks form. Add marshmallow creme and continue whipping until stiff peaks develop.
03 -
Gently fold the whipped cream mixture into the chilled pudding base in multiple batches, careful not to deflate the mixture. Stir until only minimal streaks remain for a consistent texture.
04 -
Arrange a single layer of vanilla wafer cookies in the bottom of a 9x13 inch baking dish or a large serving bowl. Place sliced bananas over the cookies. Spread one third of the cream mixture evenly over the bananas. Repeat the layering process twice more, finishing with the remaining cream mixture on top.
05 -
Garnish the surface with additional crushed vanilla wafer crumbs if desired. Refrigerate uncovered for a minimum of 4 hours before serving to achieve optimal flavor and set.