Plantains are a starchy fruit that can be used at various levels of ripeness. When they are green, they can be use to make chips or other fried recipes and are not very sweet. As they blacken they become sweeter and are great for dessert dishes. For this dessert dish of Plantains Con Crema the plantains should be fairly sweet, but the skin should not be completely black. They are baked until softened and topped with cream and berries. It's a wonderfully fruity spring dessert or snack.