This recipe is courtesy of one of my Mom's coworkers and a good one for non-cooks. You need four ingredients and don't even have to turn on your oven. The melted Mars bars lend these rice krispie squares a delicious chocolate, caramel and nougat flavour. I halved the amount of chocolate topping to put over the squares, in relation to the original recipe.
To make, melt 1 cup of butter or margarine with eight roughly chopped Mars bars in a large microwave-proof dish on a medium power setting, removing the mixture occasionally to mix together. Once melted, add 6 cups of Rice Krispie cereal and mix. Transfer into a 8" square pan. Moisten fingers then pat squares down gently. Melt 1/2 bag of semi-sweet chocolate chips, and pour over the squares and spread with a spatula. Cover and refrigerate until hardened.
Tip: The squares didn't stick together as well as classic rice krispies. Next time I may incorporate a little bit of marshmallow.