These rolls are best right out of the dehydrator, but will keep in the fridge up to 4 days. I recommend placing them back in the dehydrator at least an hour before serving though, because they will get a little soggy in the fridge.
To make larger rolls, simply continue rolling by adding another banana slice at the end of the first one.
I haven't tried, but you could easily make a white icing out of blended cashews and sweetener, or you could drizzle with vanilla yogurt. These rolls are plenty sweet as is though!
This recipe makes extra date paste, which is fantastic on toast!