This beautiful cake designed by Jenn from Cookies Cupcakes and Cardio has all the visual appeal of a purchased ice cream cake, but is simple enough to make at home. I love the design, but am also excited to know how easy it is to stack layers of ice cream for a cake. Instead of a rainbow, I would try stacking different flavors for a more "adult" ice cream cake. The best part is that since it has a cookie base, the cake can easily be put into bowls with a cookie crumbled on top when serving. This eliminates the struggle to cut through the hard cake layer that I find in most ice cream cakes.