A honeyed Ugli Fruit Yogurt Parfait is a snack time treat that is healthy and easy for anyone to make! Parfaits are a layered sweet treat that can be eaten at home or on the go. Ugli fruits are in season from November-May in the United States. We couldn’t find any Ugli fruit at our grocery store, but grapefruit or tangelo works just as well (we used grapefruit).