Swiss roll with a cold sponge

[BakingYam23]

Hi,

I need to make a Swiss roll at an event where I won't have an oven. They will provide me with a ready made sponge cake base which is about the right height and I can cut it into the right shape.
The problem is that obviously as its cold and store bought it won't roll easily (or at all).
Any ideas on how to make it more likely that it will roll like a home baked sponge?

I was thinking of perhaps spreading some water/alcohol over the top and heat it a bit on a cake rack over the stove.

Thanks

 

[Becky]

Welcome to the forum!

I can't think of a way that could work to be honest... Will it be a sponge that is suited to being rolled? Usually they are a fat-free sponge. I agree that gently heating it (or steaming it maybe?) could work, but you'd need to practice it beforehand to test out the method. Why do you want to use alcohol?