Shortbread is pretty straightforward, and it does better than most using Splenda if you are watching the calorie intake.
Of course, it is only issued in the cockpit
as it is too crumb-prone for the saloon
, as are chips of any sort...out into the element with them!
I don't have a recipe to hand, but I can offer a tip: Splenda is very fine, and you should close all hatches before you mix it into the flour as even a light breeze through the boat will send it airborne.