Help someone celebrate a birthday with a sweet treat with InstaCake -- the birthday card with a cake cooked right inside! This tasty vanilla cake features rainbow sprinkles, vanilla frosting, a baking case, measuring and mixing spoons -- all you need is water and a microwave oven. Great for home or office! Product contains milk, eggs, soy and wheat and is prepared in a peanut-free facility. Gluten free options are available. Add your school, sports team, organizational or company logo or message to the card to customize.