Casimiroa edulis

About

The white sapote, scientific name Casimiroa edulis, also called casimiroa and Mexican apple, and known as cochitzapotl in the Nahuatl language is a species of tropical fruiting tree in the family Rutaceae, native to eastern Mexico and Central America south to Costa Rica. The genus is named for "an Otomi Indian, Casimiro Gómez, from the town of Cardonal in Hidalgo, Mexico, who fought and died in Mexico's war of independence."

Summary from Wikipedia