The beauty of this sponge cake is that it’s very soft and pliable! Other pumpkin roll cakes are more dense, which can easily crack when unrolling. Not with this cake! Sponge cakes are easier to roll and unroll than other roll cakes. If you do find that your sponge cake is cracking when unrolling, that’s because the cake is too dry - usually because it was over-baked (even by 1 – 2 minutes!).