Jiló (Solanum gilo) is in the Solanaceae family and resembles eggplant in growth habit. It turns orange-red when ripe. This plant is originally from Africa and was brought to Brazil with the slave trade. It is still grown in West Africa where in some countries it is known as "garden eggs".
There are two basic types of jiló found in Brazil. One is called comprido verde claro (translating to long, light green in English). The second type, called morro redondo (round in English), is more bitter than comprido verde claro. The majority of Brazilians living in Massachusetts are from the state of Minas Gerias, where the comprido verde claro type is most popular.
Grow jiló just as you would eggplant. The fruit is harvested immature, before turning orange or red. The Brazilian market will not except fruit that has turned red or orange. The fruit becomes more bitter as it matures.
For information on production and management of jiló, refer to the The New England Vegetable Management Guide and click on "eggplant".
Currently there are no known commercially available seed sources in the United States. Johnny's Selected Seeds is able to make a special order from a seed company in Brazil.