Easy and simple recipe for a Napoleon cake that doesn't require an oven. The cake turns out very tender and soft, not too greasy, simply delightful in my opinion. It is quick to prepare and doesn't require much soaking time, just half an hour. For a creamier taste, you can add soft butter (250 g) to the cream. In this case, the cream will be thicker and the cake 'Napoleon' will need more soaking time.