Doggie Birthday Cake....

I am asking for a recipe....Stella will be a year next month, and I am going to make her a doggie cake, but from what? I can't find receipes anywhere. Does anyone have one, preferably with peanut butter or liver in it, as they are her favorite foods. I have a month, so please post it here, or email it to me 'debanneball@hotmail.com'. Once again, thanks. :p

I found this:

http://www.sitstay.com/store/edibles/treats5.shtml

and this:

http://baking.about.com/library/bldogs.htm

and this:

http://www.foodfunandfacts.com/k9birthdaycake.htm

and this:

http://www.petcakes.com/

There is recipes for a carrot cake and brownies at bowwowbakery.net