In you mixer (I just love mine!) cream together butter and powder sugar. Add eggs and vanilla. Mix for about 15 to 20 minutes...yes, really that long (more on this later).
Drain pineapple and then add on top of bananas.
Top with Cool Whip. Then if you choose to add the cherries you would do that on top of the Cool Whip (I forgot to buy some). Refrigerate and enjoy!
***Just a few notes. My mom has been making this forever! The original recipe called to beat the mixture BY HAND for 20 minutes. Just imagine. Well Mommy and I finally discovered that you could let the mixer do the work; SO much easier. The original recipe also called for two packages of Dream Whip, but we found that Cool Whip works just fine. With these changes it has made making this recipe so much faster. Now I can whip it up in no time!