We typically steer clear of cocktails that require a lot of advanced prep work we assume that when you pick up the cocktail party app, you want to mix something now So the crucian banana squash is a notable exception; with a wait time of 4 hours, it has the longest prep time of any drink we currently list. But its absolutely, totally, completely worth the wait this is the grandaddy of all blended banana cocktails, and the rum-soaking step is the best way weve found to get the most out of the banana-rum flavor combo. We found this delicious recipe in the pages of beachbum berrys potions of the carribean, a book thats half cocktail recipes, half mixo-anthropological history. The recipes roots can be traced back to at least the 17th century, when english explorer william dampier described a similar recipe for a drink enjoyed by the miskito people of nicaragua. The bananas you use for this should be very ripe not black, but with plenty of brown spots. Note the size of your blender when you make this recipe; if your blender is very large, you might want to double up the recipe to ensure it mixes well.