Boil the can of sweetened condensed milk in water for 3 hours. Once it has cooled, mix the contents of the can with milk in a large bowl.
Cut 3 evenly-sized sections out of the banana bread with a round glass (do not use the end slices of the loaf).
Coat the top of each banana bread circle with the dulce de leche.
Caramelize sugar in a pan and then add butter. Once it's melted, pour in the rum and flambé the whole thing. Add a splash of orange juice to the pan and then fry the banana slices.
Place one of the coated banana bread circles on a plate and wrap a strip of transparency film around it. This will serve as the base of the dessert.
Top the banana bread circle with two caramelized bananas and some vanilla pudding. Repeat this process 2 more times to create a total of 3 layers of banana bread, caramelized bananas, and vanilla pudding. Refrigerate the dessert tower for 1 hour.
Remove the first strip of transparency film. Take the second strip, spread melted dark chocolate over it, and wrap it around the dessert tower. Refrigerate the dessert for 2 hours.
Add a dollop of whipped cream and sprinkle a few chocolate pearls or chocolate chips on top and enjoy this stunning work of art.