This kind of dessert make your table funny and bring a lot of joy for your children. Oven should be heated to 200 degrees. I will roll the treats up. So butter the waxed-papper first. Marshmallows and butter (1/4 of cup) should be melted in microwave. Next add cereal and graham cracker crumbs. Mix it and press. Level marchmallow crème on the top and place bars of chocolate. Bake it for few minutes. By means of spatula level melted chocolate. Leave it ti get cold. At last roll it up, peel away the waxed paper and put into the fridge. Chocolate must harden. Then slice and try. Enjoy!