The first step to making a cake for dogs is to get cans of dog food, the kind that is not chunky, and more like a meatloaf or luncheon meat. I used Pedigree but you can use any kind. Scrape the food out of the cans and put it all in a bowl, and then microwave it until it becomes liquid.
The next step is to transfer the goop into a mold. Careful! The bowl will be very hot.
After the transfer to the mold, let the dog food cool down so it becomes solid again. It will be a bit like a jelly.
Then turn it upside down and put it on a serving plate, and you're done! You have to be very patient, because it takes a long time for the dog food to cool down all the way. But if your cake collapses, then don't worry - just warm it up all over again and start over!
I couldn't wait to give the dogs the cake I made for them. They loved the cake and celebrated with me by eating heartily.