We loved these! Made them for a Christmas party (at least those that were left after my son found them). It was easier to add the total amount of chocolate in the recipe (if you're using all dark chocolate like MA HIKER suggested, which we prefer, too), which is 10.5 oz. Buying the larger bars was easier and less expensive than finding the little bars. We also used a little more rice cereal and craisins to give them a little more body.
If you love chocolate try these! I like the surprise fruity sweetness of the craisins. I wonder how it would work without plumping them in hot water (would be shorter time-wise). And I am a DARK chocolate fiend, so I used only dark chocolate, no milk chocolate. Easy to make & delicious!