I make these every year at my friends Girls only party.. And I usually wind up running out of all the rum I bring and the coconut creme and I bring two bottles of the stuff. When we run out they typically want me to go get more and I say and who's driving me, it is the only reason I get out of it!
if your making a batch - 3 ounces of malibu rum or the banana rum (my girl Beth likes it with nana sometimes so I mix it up) 3 ounces of spiced rum - put in a blender.
1/3 can of pineapple juice in blender.
about a quarter cup of coconut cream (okay so my girls like it coconutty), Ice, blend until smooth, serve...
On a side note - I like mine strong so I will add an ouce of spiced rum for good measure. The right way is to do a floater in each glass so they are really strong... but the girls are messy and blending it in works better for messy girls!