The oroblanco is a cross between a pummelo and a white grapefruit. With a thick rind and a green or golden exterior, the oroblanco is larger than a grapefruit and has fewer seeds. Patented by the University of California, the fruit is less bitter than the grapefruit and is actually nicknamed “sweetie” by Japanese buyers and is trademarked “Sweetie” in Israel, where it is now commonly cultivated. Peel oroblancos as you would an orange and enjoy as a snack or breakfast food. Literally meaning “white gold” in Spanish, choose oroblancos that are unblemished and emit a fresh, citrusy fragrance.