Solanum betaceum, It is best known as the species that bears the tamarillo, an egg-shaped edible fruit Other names include tree tomato and tomate de árbol.
Prior to 1967, the tamarillo was known as the "tree tomato" in New Zealand, but a new name was chosen by the New Zealand Tree Tomato Promotions Council in order to distinguish it from the ordinary garden tomato and increase its exotic appeal.The choice is variously explained by similarity to the word "tomato", the Spanish word "amarillo", meaning yellow, and a variation on the Maori word "tama", for "leadership". It is still called Tree Tomato in most of the world.
The fruit is eaten by scooping the flesh from a halved fruit. When lightly sugared and cooled, the flesh makes a refreshing breakfast dish.
They give a unique flavor when made into a compote, or added to stews (e.g. hollandaise, chutneys, and curries. They are also tasty and decorative in, for example, radicchio salads. Appetizing desserts using this fruit include bavarois and combined with apples in a strudel.
, Colombia and Ecuador Sumatra, fresh tamarillos are frequently blended together with water and sugar to make a juice. It is also available as a commercially pasteurized purée.
The flesh of the tamarillo is tangy and mildly sweet, and may be compared to kiwifruits, tomato, or passion fruits. The skin and the flesh near it have an unpleasant bitter taste, and usually aren't eaten raw.
Source : Wikipedia