Cereal Fruit is a term used to describe a variety of fruits that are added to breakfast cereals. The most common cereal fruits are raisins, which have 6 letters, and raisins, which have 7 letters. Other popular cereal fruits include bananas, which have 6 letters, and Crunchberry, which has 11 letters. These fruits add flavor and nutrition to breakfast cereals, making them a popular choice for many people.