Weight Watchers Chocolate Marshmallow Fudge

"This chocolate treat is quick and easy to make. I don't like to sacrifice taste even when I'm watching my weight. This recipe is perfect for those times when I'm craving chocolate, but I don't want all of the extra calories. Update 9/1/08: Despite what one reviewer states, my posting of this recipe was in no way meant to "fool" you. I do cut mine in 36 pieces. It is perfect for those times when I am craving chocolate. If I can't control my cravings then I just better not make them. Weight Watchers, or any diet, is about portion control and nothing is going to be low-fat or good for you if you eat too much of it...."