Think of these as cake pops without the sticks—meaning they are entirely appropriate for a grown-up birthday party or other celebration. This recipe calls for store-bought chocolate cake, but you can certainly start by baking your own favorite cake if desired. Cream cheese and Nutella are added to the cake-crumb filling, which is then coated in three different types of melted chocolate: white, dark, and milk chocolate. Sprinkles are a festive flourish.