Grapefruit are available all year round, but are at their best in the winter months. There are several varieties: white, which is best for juicing, pink, which is so sweet it can be eaten like an orange, and red, which is sweeter still. The fruit should be heavy and even-coloured. Most commonly served as a breakfast appetizer, grapefruit is also used to make juice and marmalades, added to fruit salads, ices, cakes and desserts. It can be baked or grilled as well as served raw.