Chocolate Purple Sweet Potato Roulade

A photo of a very easy-to-bake dessert with a very beautiful design from

I like how the violet color has cleanly penetrated the entire piece. I also noticed how each bite is equally distributed with the color. Furthermore, the outside layer gives off a sophisticated look.

The violet swirls give the impression that this cake is hard-to-make, well in fact it is more of the opposite. I just love this dessert.