Don't tell your kids the main ingredient, or they'll make oogy faces. This is a very moist rich cake with a lovely color and the frosting is wonderful.
Pineapple makes it moist and walnuts give it some crunch.
You can also give some starter to friends, or sourdough starter can be used in place of the Friendship Starter. It is moist, unlike the sweet styrofoam available in the grocery bakery. A tube pan with a removable bottom is highly recommended. Some people like to make an angel food cake as a birthday cake. I have made this one before, and it was great.