Easy Halloween Treats Frankenstein Cakes Halloween is so fun for both kids and adults, I love to make fun treats for Halloween parties. But I prefer to make fast and easy treats that will bring a smile to their face but won't take all day. These Frankenstein Cakes are so simple because you are not cooking anything, instead just decorating. So essentially they are a "craft/treat" my older girls love making them, fun project for tweens/ teens.