Make This Now: Tres Leches Cake

Or Dreimilchkuchen, as we've taken to calling it for no real reason.  I made this for Idahomie's belated birthday last night.  It was a struggle to wade through all the recipes on the internets -- each one I read had something wrong with it -- a too sweet sounding cake recipe in some, no booze in others, and a bizarre and WAY-too-much-for-a-weeknight combination of homemade and canned condensed milk in the recipe from the generally trustworthy Mary Sue Milliken and Susan Feniger.  But, luckily, something in the tone of the prose of Regan Burns' recipe on Chowhound assured me it was going to be delicious.  It was.  Also, it is probably the easiest dessert I've ever made.  The cake has 3 ingredients, and other than that you just pour some liquid over it, refrigerate, and whip some cream.  Couldn't be easier.  3 changes I made -- no coconut on top (I just wanted it to be soft and rich), mangoes on the side, A LOT more rum in the milk mixture -- maybe 5 times as much.  I'd just keep adding to your personal taste -- we're pretty boozy around here.