"There is something suspicious about thin pastry chefs. There is just no way to make such delicious things and not eat some."
Beat all the products together, adding them sequentially in the order listed and stir well. Pour the mixture into a cake form, either covered with paper baking or pre-buttered and floured.
Bake in a moderate oven until ready, and finally check with a toothpick to see if it's ready. Once the cake layer has cooled, smear it with dark marmalade or jam.
Let the cake sit overnight before you cut it into slices.