This simple Portuguese cake requires only 4 ingredients to make a delicate and rich dessert. It mixes together in about 20 minutes and bakes for another 20, making this cake a great choice when you don't have a lot of ingreidents on hand. The cake does have to rest for a day, so make sure you plan ahead of time so it is ready when you need it. This is a great recipe to keep on hand for when you need an easy dessert.