This is another one of those recipes where I hated this dessert my whole life and was then challenged to come up with a formula for it that I DID like. Here it is - I still don't care for banana cream pie - but this one, I crave sometimes. It's rich without being too sweet, the rum and lime juice give it zip, and the chocolate sauce just adds that last punch! I guarantee you won't have any left if you make one. Please don't substitute or leave ingredients out of this recipe. Everything listed is crucial to the final product.