The filling is where the cookie butter flavor starts, but it doesn't end there. Our Cookie Butter Cake at Sweet Reserve Bakery in Schaumburg has soft vanilla cake layers with rich, creamy cookie butter frosting between them. A smooth white buttercream coating covers the cake, and cookie butter frosting swirls with a signature Lotus cookie complete the top. Available in: 6-inch (serves 6–10) 8-inch (serves 12-18) 10-inch (serves 25-35)