Icebox cakes are a type of no-bake dessert that typically consist of layers of cookies or graham crackers and a creamy filling, often made from whipped cream, cream cheese, or pudding. The layers are assembled in a dish and then chilled in the refrigerator, allowing the cookies to soften and absorb moisture from the filling, creating a cake-like texture. These cakes are popular for their simplicity and versatility, as they can be made with various flavors and ingredients. Common variations include chocolate, fruit, or coffee flavors, making them a delightful treat for any occasion.