I get cravings for this sometimes or for something sweet and chocolately like this, but I wanted to try something slightly better for me. You could try cutting out the oil/margarine altogether and maybe even the peanut butter. And you could experiment with other low-calorie cereals. I would guess plain puffed rice might be nice. This is basically the same as the regular recipe, but with slightly less chocolate, oil/margarine, and a powdered sugar alternative.