The Shaddock is a citrus fruit that is a hybrid of the grapefruit and the POMELO. It is also known as the 'Forbidden Fruit' because it was the first citrus fruit to be introduced to the Americas. The Shaddock is larger than a grapefruit and has a thick, yellow-orange rind. Its flesh is juicy and sweet, with a hint of tartness. The POMELO is a large citrus fruit that is closely related to the grapefruit. It has a thick, yellow-green rind and its flesh is sweet and juicy. It is an important ingredient in many Asian dishes.