That's it. You don't have to grease and flour the pan. You don't have to cream anything. It is so simple there should be a law against it. Just be sure it has cooked through into the middle of the top. It may take a few minutes more or less in your oven. In mine, it takes exactly 38 minutes.
You can use this cake as the basis for Better than sex cake, or it will take any icing or frosting.