These dog birthday cakes come complete with icing so you can have a dog bakery at home! These simple mixes only require one egg, oil, and water. Fed in moderation, Puppy Cake is a fun and healthy supplement to your dog’s diet. Directions: Add 1 egg, 2/3 cup of water, and 2 tablespoons of vegetable oil; mix until well blended. Pour batter into greased pan or cupcake pan. Bake for 20-24 minutes at 350 degrees. Add 2 tablespoons of water to the icing mix and top the cooled cake immediately. Storage: Store in an airtight container in the fridge for