Coca de Patata is a traditional Mallorcan potato cake. It is made with a mixture of mashed potatoes, flour, olive oil, and yeast, which is then rolled out into a thin crust and baked until golden. Coca de Patata is a popular menu item in Mallorca, where it is often enjoyed as a snack or side dish. The cake is soft and fluffy, with a subtle potato flavor. It is a delicious and comforting treat that is perfect for any time of the day.