I’ve been using a lot of sweet potatoes lately. The cake sounds wonderful. Here’s my latest sweet potato recipe find:
Curried Sweet Potato Soup with Apricots
On the sweet potato cake, I recommend using canned sweet potatoes rather than fresh for the ease and the consistency of the canned variety. You may get different results if you use fresh-cooked ones, not necessarily as good as the canned, but it may be worth a try. You can always try and try again!
You just want to be sure to use a full 15 oz. of firmly packed, canned/cooked sweet potatoes.