Sitaphal, or Custard Apple, or Sugar Apple is believed to have originated in the Andes mountains of South America. These trees grow the best in tropical regions with high altitudes. The fruits are scaly and green in color. The inside is filled with seeds wrapped in sweet flesh that is rich in antioxidants. Even though this fruit tastes amazingly creamy and sweet as it is if you want to experience it at its best, have a scoop of Sitaphal ice cream!