Birthday Sandwich Cake

It’s not every day your daughter turns 20. But it is nearly every day that annoying commitments stop you from doing important things - like buying the birthday cake and candles - especially when my wife is traveling. So, late at night, after useless meetings and well after when shops close, I asked Claude (the most creative of the lot): I have bread, Nutella, peanut butter, jam, and the usual household supplies. How can I celebrate my daughter’s 20th birthday with a birthday cake using stuff like these? Any creative ideas? ...