An easy and simple recipe for a Napoleon cake that does not require an oven. The cake turns out very tender and soft, not too greasy, simply delightful in my opinion. It is quickly prepared and does not require much time for soaking, just about half an hour. For a creamier flavor, you can add soft butter (1 cup) to the cream. In this case, the cream will be thicker, and the cake will need more time to soak for Napoleon cake